ByHella093, writer at Creators.co
Satanism and Cats
Hella093

Within the series' narrative, the Doctor is a centuries-old alien Time Lord from the planet Gallifrey who travels in time and space in his TARDIS, frequently with companions. When the Doctor is critically injured, he can regenerate his body; in doing so, his physical appearance and personality change. Hartnell's Doctor is the Doctor's "original" form. The regeneration plot device was introduced when Hartnell needed to leave the series, and consequently has extended the life of the show for many years.

His original companions were his granddaughter Susan (Carole Ann Ford) and her schoolteachers Ian Chesterton (William Russell) and Barbara Wright (Jacqueline Hill). Hartnell's version of the Doctor was also the basis for the character played by the actor Peter Cushing in the 1965 and 1966 Dr. Who films, which do not share a continuity with the television series.

  • Series 1 (1963 - 1964)

- An Unearthly Child (4 Episodes)

The first episode starts in a junkyard in contemporary London and introduces the four characters who were to form the core of the first year's production: the Doctor, schoolteachers Ian Chesterton and Barbara Wright, who are concerned about one of their pupils at Coal Hill School named Susan Foreman, who seems to have a very alien outlook on England.

Susan is precocious, but seems to have strange gaps in her understanding of the world, which the teachers have come to her listed address, number 76 Totters Lane, to investigate. Here they encounter a police box, the programme's main prop, known as the TARDIS, from within which they hear Susan's voice. At that time, the boxes were a common sight in Britain, but only police officers held a key to enter them. The TARDIS proves to be no ordinary police box: when Ian and Barbara enter, they discover it to be much bigger on the inside than the outside, and furnished with futuristic-looking controls. The time machine retains its outward appearance when it travels through time, which Susan explains as a malfunction in the circuitry that is supposed to adapt its appearance to its surroundings. Susan lives with her grandfather, the mysterious Doctor, who does not otherwise identify himself. He is a cranky, hostile, suspicious old man who appears to be a fugitive. Fearing that Barbara and Ian will give away the secret of the TARDIS and make life impossible for him in London, he sets the Tardis in flight and ends up in the Stone Age.

In the remaining three episodes, the four become involved in a brutal power struggle within a Stone Age tribe. In "The Cave of Skulls", the group encounters a Paleolithic tribe and are subsequently imprisoned by them in a large cave. In "The Forest of Fear", they are shown to escape from the settlement, but are subsequently intercepted before reaching the TARDIS. They barely escape with their lives by exploitation of Ian's knowledge of how to produce fire, which induces fear and respect in the primitive Stone Age society. The final episode, "The Firemaker", has the group mediating separate factions of the tribe before fleeing successfully to the TARDIS. They travel, seemingly at random, to a new destination; even the Doctor does not know where. The TARDIS's view screen shows a mysterious scene, a petrified forest, which acts as a teaser for the next story. As the time travellers leave their machine, a radiation meter is shown on the console of the machine, unheeded by them, registering "Danger".

- The Daleks (6 Episodes)

This story introduces two plotlines in Doctor Who, that of the TARDIS' navigational circuits malfunctioning and that of the supposed destruction of the Dalek race. In this case, instead of bringing its crew back to Earth, the TARDIS lands in a petrified jungle, and the Doctor has to try to fix their position by taking a reading of the stars. The Doctor insists they explore a futuristic city they spot beyond the forest but Ian Chesterton and Barbara Wright are not convinced. In the forest someone touches Susan's shoulder, however the Doctor doesn't believe her. Later a box of vials is found outside the TARDIS. The Doctor claims the fluid link of the TARDIS is running low on mercury (a ruse he later admits to), forcing the crew to travel to the city in search of more mercury.

Inside the city, Barbara becomes separated from her colleagues, and is, in the iconic first episode cliffhanger, threatened by an unseen creature with a metal arm - the first appearance of a Dalek. Before long, the entire crew is captured by the Daleks. Susan is eventually sent to retrieve anti-radiation drugs from the TARDIS, the Doctor realising this is what the box contained. Susan encounters a second species, the Thals, who used to be at war with the Daleks. The Thal who left the drugs reveals he encountered her in the forest. Susan attempts to broker peace between the two groups, and while it appears to work, the Daleks eventually betray the Thals, opening fire on them at what was supposed to be a peaceful exchange of food. The Daleks try using the anti-radiation drugs, but discover that they are fatal to Daleks. They conclude that Daleks need radiation to survive and decide to bombard the atmosphere with more radiation.

In the ensuing chaos, the Doctor and his companions escape with the Thals, and learn their version of the history of their planet. They also learn that the Thals are avowed pacifists. They are unable to leave Skaro, however, as the fluid link has been taken by the Daleks. In order to save them from the Daleks, the TARDIS crew convinces the Thals of the importance of aggression and warfare, and manages to lead the Thals in a successful attack against the Daleks. At the end, it is believed the Dalek race has been destroyed when their power supply is knocked out. The TARDIS crew leave Skaro, but an explosion in the TARDIS knocks them out.

- The Edge of Destruction (2 Episodes)

The Doctor, while attempting to correct the TARDIS's faulty navigation circuits, causes a small explosion. The Doctor, Barbara, Ian and Susan are all temporarily rendered unconscious. After they awake, Ian and Susan appear to have slight cases of amnesia and everyone begins to act strangely. Unexpected events are happening in the TARDIS, the travellers are becoming suspicious of each other's motives, and the Doctor even accuses Ian and Barbara of sabotage. Fearing that they have been taken over by some alien force—or that they have intentionally sabotaged the TARDIS in order to force the Doctor to return them to 1963—he drugs Barbara and Ian unknowing that Ian is also suspicious and has not taken the drink given to him. The Doctor attempts to explore the problem without interference.

Gradually it becomes clear that the strange events are an attempt by the TARDIS itself to warn the crew that something is wrong. Thanks to Barbara's clue gathering, the Doctor traces the problem to a broken spring in the Fast Return Switch. The malfunction is causing the TARDIS to head back to the beginning of time; the strange events were just the TARDIS's attempts to warn its passengers before the ship is destroyed. Fixing the switch brings all back to normal. Although the day is saved, Barbara is still affected by the Doctor's harsh words earlier. The Doctor is forced to do what he least enjoys—apologise, and admit that he was wrong about Barbara and Ian.

The story closes with the TARDIS materialising on a snowy landscape, where Susan spots a giant footprint in the snow.

- Marco Polo (7 Episodes)

The TARDIS crew lands in the Himalayas of Cathay in 1289, their ship badly damaged, and are picked up by Marco Polo's caravan on its way along the fabled Silk Road to see the Emperor Kublai Khan. The story concerns the Doctor and his companions' attempts to thwart the machinations of Tegana, who attempts to sabotage the caravan along its travels through the Pamir Plateau and across the treacherous Gobi Desert, and ultimately to assassinate Kublai Khan in Peking, at the height of his imperial power. The Doctor and his companions also attempt to regain the TARDIS, which Marco Polo has taken to give to Kublai Khan in effort to regain the Emperor's good graces. Susan gets the key from Ping-Cho but is captured by Tegana before they can depart. They are finally able to thwart Tegana, who kills himself, and, in doing so, regain the Emperor's respect for Marco Polo, who allows them to depart.

- The Keys of Marinus (6 Episodes)

On a small island with a glass beach, surrounded by an acid sea, on the planet Marinus stands a tower with many secret entrances. Within the tower is Arbitan, Keeper of the Conscience of Marinus, a vast computer developed two millennia earlier as a vast justice machine which kept law and order across the entire planet. For seven hundred years, the Conscience was absolute, radiating its power across the planet Marinus, and eliminating all thought of evil. But then Yartek, leader of the alien Voord, worked out how to resist its impulses. When The Doctor and his companions Barbara Wright, Ian Chesterton and Susan arrive on the island, they are brought into the tower to an audience with Arbitan, who explains that the society of Marinus is in danger. Several submersibles containing Voord, humanoid creatures protected by amphibian-like black rubber wet suits, have washed up on the beach. Inspired by Yartek, the Voord are seeking to enter the tower and take control of the Conscience. Arbitan explains that the Conscience has now been upgraded sufficiently to control the Voord again, but needs to be activated. Years earlier Arbitan had prevented the Conscience from falling into Voord control by separating the five Keys needed to regulate it. The five keys are in different locations - one is in Arbitan's possession, but the other four are scattered over Marinus. The keys can only be found by following directions pre-set into travel dials, watch-like devices with the power to transport the wearer across the planet to the correct locations. Arbitan asks that the Doctor and his friends help him fend off the Voord by gathering the keys together. Others have tried to accomplish this task - even Arbitan's own daughter - but none have returned to the tower.

The Doctor refuses Arbitan's request, but is unable to access the TARDIS due to a force field Arbitan places around the ship. And so the Doctor and his companions are coerced into aiding Arbitan. As the four teleport away from the tower using the travel dials, Arbitan is attacked and stabbed to death by a Voord that has secretly gained access to the tower. The first location visited by the travellers is the City of Morphoton. The seemingly advanced and pacifist inhabitants impress the travellers with the luxuries, advances and aesthetics of the city. But all is not as it seems. Barbara is the first to realize the truth when a hypnotic disc intended to make her mind receptive to the hypnotic pulses slips off her forehead, causing her to realise that Morphoton is actually a place of dirt and squalor rather than beauty and luxury. Unknown to the Doctor and crew, Morphoton is governed by four brain creatures with hideous eyes on stalks who, having outgrown their bodies, live in large bell jars and communicate through their life-support machines. The Brains of Morphoton use hypnosis to control the human population, and the entire City is subjugated to their will.

Once the Brains realize Barbara has seen the truth and is thus impervious to their hypnotic control, they order that she be killed. Barbara escapes and hides in the city, there making contact with the slave girl Sabetha, who has been blamed for Barbara's awakening and sentenced to death. Barbara deduces Sabetha is Arbitan’s missing daughter, and sees Sabetha wears one of the Keys about her neck. Barbara helps break Sabetha's conditioning, and together they escape and destroy the jars and equipment protecting the Brains. With their life-support ruined, the Brains die, and all the human subjects of the city are freed. Another slave called Altos remembers he too was sent to Morphoton by Arbitan, and he and Sabetha decide to join the Doctor and his friends on their quest. The six now split up, with the Doctor going ahead to find the final key in the City of Millennius, while the others attempt to find the second key in the next destination.

The next location for the five searchers is a dangerous screaming jungle, which has a particularly debilitating effect on the telepathic Susan. In the jungle is an ancient temple overgrown with plants. Much of the flora is hostile and the travellers are relieved to find the next Key so easily, propped on the top of a statue in the temple. However, this "Key" is a decoy and, when touched, activates ancient machinery that causes the statue to move. Indeed, the whole location - jungle and temple - is a place of danger and traps. When Barbara is caught in the statue mechanism and disappears into the temple, Sabetha argues she may have possibly used her travel dial to move on to the next location. Sabetha compares the "Key" Barbara found with her original and realizes the easily found Key is actually a fake. While Ian remains at the temple to search for the real Key, Altos, Sabetha and Susan go to the next location to search for Barbara.

Ian activates the statue mechanism and is also taken into the temple, where he finds Barbara again. Hiding in the temple is an aged and dying scientist, Darrius, whom Ian saves from an attack by a creeping vine. Very weak, the old man explains the traps of the temple are to fool the Voord, and that he too is a friend of Arbitan. Before dying, Darrius tells Ian and Barbara the Key is hidden in "D-E-3-O-2." The plants, mutated by a growth accelerator built by Darrius, become more and more aggressive. The two friends only just manage to retrieve the Key from an experiment jar before the vegetation overruns the temple.

Ian and Barbara now teleport to an icy wasteland where they meet the duplicitous trapper Vasor, who steals their Keys and sends Ian back into the wastelands where he hopes Ian will be eaten by packs of wolves. In the wastes Ian finds Altos, bound and abandoned, and works out Vasor is to blame. Ian and Altos return to the trapper’s hut and confront him, forcing the wicked man to reveal the stolen Keys in his possession and to take them to the ice caves where he had earlier abandoned Sabetha and Susan. The two girls have meanwhile searched the icy caves themselves and uncovered mechanized Ice Soldiers. The travellers are soon reunited and find the next Key frozen in a block of ice. Their act in removing it revives the Ice Soldiers, who begin a vicious rampage. They flee back to the trappers' cottage and retrieve their stolen dials, getting ready to escape. Vasor takes Susan hostage and demands that they stay. An Ice Soldier stabs him down from behind and they escape.

When the travellers reach the next location Ian finds himself accused of the murder of Eprin, a friend of Altos, who had discovered the key shortly before his death. The Key has now disappeared and Ian is accused of theft and Eprin’s murder. The punishment will be death if he found guilty before the court of Millennius. The other travellers are reunited in advance of Ian’s trial, at which the Doctor takes on the role of defence counsel. He succeeds in postponing the trial for two days while he gathers evidence and uses this time to work out what really happened to Eprin. He works out that the relief guard, Aydan, is implicated in the murder, but Aydan too is murdered during the course of the trial before he can reveal the truth of the plot. Things take a turn for the worse when Susan is kidnapped and used as a hostage to try and persuade the Doctor not to investigate the crimes any further. The kidnapper is Kala, Aydan’s widow, who is in league with Eyesen, the Court Prosecutor, who has succeeded in persuading the Three Judges of Millennium to find Ian guilty of Eprin’s murder. Luckily, the others find Susan bound and gagged in Kala's house before Kala can kill her, like she did to her own husband, and the plot is uncovered. Tarron, the Chief Investigator of the City, is now also persuaded of Kala’s guilt but they must still uncover her accomplice to prove Ian did not kill Eprin. The Doctor helps unmask Eyesen and uncover the last Key, which had been hidden in the murder weapon, and Ian is freed.

The travellers now return to Arbitan’s island using their travel dials. Altos and Sabetha have travelled ahead with all but the last Key in their possession. They do not know the old Keeper is dead and that Yartek is now in charge, clothed in Arbitan’s robes to maintain the ruse. Yartek has seized the first four Keys and holds Altos and Sabetha prisoner while he awaits the fifth and final one. When the Doctor and his three friends arrive they soon realize that the Voord have taken control of the tower and the Conscience. The Doctor frees Sabetha and Altos and then unmasks the Voord. Ian too has played his part, and given Yartek the false key from the Screaming Jungle. When Yartek places the false Key in the Conscience, the machine explodes and he is killed along with the occupying Voord. The Doctor and his friends flee the tower with Altos and Sabetha before the growing blaze overtakes the ancient structure.

- The Aztecs (4 Episodes)

The TARDIS crew arrive in Mexico in the 15th Century. With the TARDIS trapped in a tomb, Barbara is mistaken for a female reincarnation of the ancient high priest Yetaxa, and assumes her guise and identity. From her new position of power, Barbara sees her chance to bring an end to human sacrifice. She sees the good side of Aztec culture manifested in Autloc, the High Priest of Knowledge, and the gruesome side embodied in 'the local butcher', the High Priest of Sacrifice, Tlotoxl. As something of an expert on this period, she sees how advanced their culture really is and believes that if sacrifice were abolished, they would be spared destruction at the hands of the Spanish. The Doctor's urgent warnings that Barbara cannot change history fall on deaf ears, much to the Doctor's fury.

The bloodthirsty Tlotoxl begins to suspect Barbara is not Yetaxa returned, especially because she is trying to ban human sacrifice. He sets a series of elaborate traps for her and her companions. For example, Ian has been compelled into the military and fights the strongest warrior, Ixta, to prove his ability to command the Aztec forces. Thus Ixta develops a grudge against Ian and is used by Tlotoxl to try to prove that Barbara is not Yetaxa. The Doctor unwittingly tells Ixta how to defeat Ian in combat using a drugging agent, and this battle nearly ends in the Doctor witnessing his friend's death. When this fails to be conclusive, Tlotoxl convinces the subordinate priest Tonila to make a poison for Barbara; the death of Barbara following consumption of the poison would prove she is not immortal and therefore not a god. But Ian silently warns her from his hiding place, and Barbara refuses to drink the poison. She tells Tlotoxl that she is not Yetaxa but warns him not to tell the people. He now knows the truth - but must find a way to unmask the false goddess.

Susan and the Doctor have meanwhile both become involved in marriage-making scenarios. Susan has transgressed Aztec law by refusing to marry the Perfect Victim, who has been scheduled for sacrifice by Tlotoxl on the day of the next eclipse; while the Doctor, who knows little of Aztec customs, has become accidentally engaged to an Aztec woman named Cameca after they shared a cup of cocoa. Cameca is a kind lady and helps the Doctor and Ian find a way to re-enter the tomb by a secret entrance, despite realising that this will enable her beloved to leave her. Ian braves a treacherous tunnel in which he is almost drowned to re-enter the tomb by a secret door and soon tells his friends that they can flee.

Despite her efforts Barbara realises that she cannot change an entire culture, although she does succeed in changing the views of one man; the High-Priest of Knowledge, Autloc. But this comes at a high price to Autloc, who exiles himself. He helps her to reunite with her friends before departing to meditate in the desert on what remains of his faith. In a pitched battle to gain access to the tomb door, Ian kills Ixta in a fight to the death to protect the TARDIS crew.

The Doctor and his companions leave knowing that despite their intervention, history will take its pre-destined course. As they depart Tlotoxl is very much in control and sacrifices the Perfect Victim to end the naturally occurring eclipse. The Doctor comforts Barbara by telling her she did help Autloc find a better belief system; and then before they depart he re-pockets a brooch given to him as a parting gift by Cameca.

- The Sensorites (6 Episodes)

The TARDIS travellers land on a moving spaceship and find the crew apparently dead. However, one of the crew members, Captain Maitland, regains consciousness and Ian Chesterton fully revives him and another woman, Carol Richmond. These two tell the travellers that they are on an exploration mission from Earth and are orbiting Sense-Sphere. However, its inhabitants, the Sensorites, refuse to let them leave the orbit. The Sensorites visit and stop the travellers from leaving, while sending them on a collision course, which the Doctor diverts. The travellers then meet John (whose mind has been broken by the Sensorites) and find out that he is Carol's fiancé.

Returning to plague the crew, the Sensorites freeze Carol and Maitland once more. The Doctor breaks Maitland's mental conditioning, but cannot help John. Susan's telepathic mind is flooded with the many voices of the Sensorites who remain scared of the humans and are trying to communicate with her. Meanwhile, The Doctor works out that the Sensorites attacked the human craft because John, a mineralogist, had discovered a vast supply of molybdenum on Sense-Sphere. Susan reports that the Sensorites want to make contact with travellers, asking the crew to go aboard Sense-sphere and reveal that a previous Earth expedition caused them great misery. The Doctor refuses but Susan, under duress, agrees and begins to leave the ship.

The Doctor deduces that the Sensorites need plenty of light, so Ian reduces the lighting on the ship, rendering the Sensorites helpless and rescuing Susan. The Doctor then asks the Sensorites to return his lock and is invited to go to Sense-Sphere to speak with the leader. Susan, Ian, Carol and John join him while Barbara and Maitland stay behind. John is promised that his condition will be reversed. On their journey to Sense-Sphere, the party learn that the previous visitors from Earth exploited Sense-Sphere for its wealth, then argued. Half of them stole the spacecraft, which exploded on take-off.

The Sensorite Council is divided over the issue of inviting the party to Sense-Sphere: some of the councillors plot to kill them on arrival, but some believe that the humans can help with the disease that is currently killing many Sensorites. Their first plot is foiled by the other Sensorites, but they continue to plot in secret. The humans are not told of the first plot, and John and Carol are cured. In the main conference room, Ian starts coughing violently and collapses. Suffering from the disease that has blighted the Sensorites, he is told that he will soon die.

It turns out that he was actually poisoned by drinking water from the general aqueduct. The Doctor finds the problematic aqueduct and starts work with the Sensorite scientists. The plotting Sensorites capture and then impersonate a Sensorite leader, the Second Elder and steal the new cure, before it is given to Ian, but a new one is made easily and Ian is cured. Meanwhile, investigating the aqueduct, the Doctor finds strange noises and darkness. He finds and removes deadly nightshade (the cause of the poisoning), but on going back, meets an unseen monster. Susan and Ian find him unconscious with a ripped coat, but otherwise unharmed. On being recovered, he tells of his suspicion that some Sensorites are plotting to kill them. The plotting Sensorites kill the Second Elder and one of them replaces him in his position.

John tells the others that he knows the lead plotter, but he is now too powerful, so the Doctor and Ian go down to the aqueduct to find the poisoners. Their weapons and map were tampered with and are useless. Elsewhere, a mysterious assailant abducts Carol and forces her to write saying she has left for the ship. Neither Susan, John or Barbara believe this so they go to investigate and find her imprisoned. Susan, John and Barbara overpower the guard and release Carol. On finding out about the tampered tools, they go into the aqueduct to rescue the Doctor and Ian. The leader discovers the plotters a little while later.

Ian and the Doctor discover that the monsters were actually the survivors of the previous Earth mission, and they had been poisoning the Sensorites. Their deranged Commander leads them to the surface, where they are arrested by the Sensorites. The Doctor and his party return to the city, pleading clemency for the poisoners. The leader of the Sensorites agrees and sends them back with Maitland, John and Carol to Earth, for treatment for madness.

- The Reign of Terror (6 Episodes)

The Doctor, Ian, Barbara, and Susan arrive in 18th-century France, in a wood outside Paris, and venture to a nearby farmhouse. They find that the farmhouse is being used as a staging post in an escape chain for counter-revolutionaries and contains clothes and fake papers, some of which bear the signature of Robespierre, the chief orchestrator of government during the Reign of Terror. They are soon discovered by two counter-revolutionaries, D'Argenson and Rouvray, who knock the Doctor unconscious and hold the others at gunpoint. A band of revolutionary soldiers surrounds the house and demands their surrender. Both D'Argenson and Rouvray are killed during the siege, but only after they have worked out that there must be a traitor in their escape chain. The soldiers enter the house and capture Ian, Barbara, and Susan, and march them to Paris to be guillotined. The soldiers set fire to the farmhouse – unaware that the Doctor remains inside.

The Doctor awakes the next morning suffering from exhaustion and smoke inhalation. He has been saved from the blaze by a young boy, who tells him that his friends have been taken to the Conciergerie Prison in Paris. He sets off after them.

Ian, Barbara, and Susan are all sentenced to death as traitors. Back at the Conciergerie, Ian is confined in one cell, while the women are taken to another. Ian's cellmate is an English prisoner named Webster who only lives long enough to tell him there is another English spy, James Stirling, highly placed in the French Government, who is now being recalled to England. It was Webster's job to find him and he only knows that Stirling can be found through Jules Renan at the sign of "Le Chien Gris". Once Webster is dead, a government official named Lemaitre arrives and probes any conversation between Ian and the dead man. Lemaitre crosses Ian's name off the execution list.

Susan and Barbara are taken to the guillotine. Their transport is hijacked by two men, Jules and Jean, who spirit them back to their safe house. Susan is ill. They are told that they will be smuggled out of France through the escape chain, but Barbara is nervous about leaving France without the Doctor and Ian. Jules and Jean reassure her that they will try to reunite the four travellers. Another counter-revolutionary, Leon Colbert, arrives and joins their company.

The Doctor reaches Paris and exchanges his clothes for those of a Regional Officer of the Provinces. He heads for the Conciergerie, but finds his companions have gone. Ian has successfully stolen the key to his cell and managed to get away. Lemaitre arrives and insists the Doctor accompany him to visit First Deputy Robespierre to report on his province. They are taken to an audience with "The Tyrant of France". Little the Doctor can say to the contrary seems to have any sway, and he departs angrily.

Ian follows Webster's words and hunts out Jules Renan, who turns out to be the man sheltering Barbara and Susan, who remains ill in bed. Barbara takes Susan to a local physician who reports them as escaped prisoners and they are seized once more by the revolutionary police. Ian goes to meet Leon only to find he is the mole in the escape chain and there are armed troops waiting for him. Leon Colbert is desperate to find out what Webster said to him, but Ian is very guarded in his comments.

The Doctor has returned to the Conciergerie, where Lemaitre reports that Robespierre wishes to see him again the following day. Lemaitre ensures that the Doctor spends the night in the Conciergerie in order that he remain in Paris for his second audience with Robespierre. He is still there when Barbara and Susan are brought in as prisoners. With Susan too weak to be moved, he engineers Barbara's release on the pretext that she can be trailed to lead the security forces to the core of the escape chain.

Jules Renan has rescued Ian, killing the traitor Leon Colbert in the process. They return to Jules' house and are stunned to meet Barbara there, released on the authority of the Doctor.

Robespierre's mental state is deteriorating and he suspects that his deputy, Paul Barras, is conspiring against him in the Convention. He asks Lemaitre to track Barras the following day to a secret assignation outside the city. When Lemaitre heads back to the Conciergerie it is to confront the Doctor, whom he unmasks in private as an impostor. Lemaitre insists that the Doctor help him find Jules Renan's house and expose the spy ring. With Susan held in the prison as a hostage, the Doctor takes him to there. Once there, Lemaitre reveals that he is in fact James Stirling. In response, Ian relays Webster's message that Stirling should return to England immediately. The spy agrees but presses Ian for more detail on Webster's last hours. When Ian recalls the words "Barras, meeting, 'The Sinking Ship'", Stirling recalls his own conversation with Robespierre and the inn on the Calais Road, and they realise that is where the conspiracy against the First Deputy will take place. Jules, Ian and Barbara head to the inn and there overhear Barras conspire with a young general, Napoleon Bonaparte, in the indictment and overthrow of Robespierre. Barras seeks to persuade the young general to take the leadership. Napoleon urges Barras to topple Robespierre, but warns him that if this fails to happen he will deny this meeting ever took place.

The following day Stirling arranges Susan's release from prison. The coup against Robespierre has begun and the tyrant has been badly wounded before being seized himself and sent to the Conciergerie. The escape chain smuggles them out of Paris. Stirling heads for Calais and England; Jules and Jean will lie low as they measure the future; and the Doctor and his companions are keen to return to the TARDIS in the wood near Paris.

  • Series 2 (1964 - 1965)

- Planet of Giants (3 Episodes)

Following a malfunction on the TARDIS console and the bleating of a klaxon indicating something is amiss, the Doctor insists the fault locator shows nothing is wrong and it is safe to venture outside. He leads his companions Ian, Barbara and Susan to the world beyond and within minutes they find a dead giant earthworm followed by a large deceased ant. They seem to have died immediately. After some deduction the travellers realise they have arrived on Earth but have shrunk in size to about an inch.

Ian is investigating a discarded matchbox when someone picks it up and he is hurled around inside. That someone is a government scientist called Farrow. He is met by a callous industrialist named Forester to tell him that his application for DN6, a new insecticide, has been rejected. In reality DN6 should not be licensed: it is far too deadly to all insect life. When they fall out over this news, Forester shoots Farrow and leaves him for dead on the lawn.

The Doctor, Barbara and Susan hear the gunshot as an enormous explosion, and head for the house. They find Ian unhurt near the dead body and surmise a murder has taken place but can do little about it. They are determined, however, to ensure the murderer is brought to justice despite their microscopic size. While avoiding a cat, the travellers get split up again with Ian and Barbara hiding in a briefcase. The giant Forester returns to the lawn and collects the briefcase, taking it inside to the laboratory. His aide, Smithers, arrives and suspects him of murder, but does not report him for fear of undermining the DN6 project to which he has given his life.

The Doctor and Susan scale a drainpipe to gain access to the house and locate their friends, braving the height as they go. Meanwhile, Ian and Barbara examine the laboratory and encounter a giant fly, which is killed instantly when it contacts sample seeds that had been sprayed with DN6. Barbara foolishly touched one seed earlier and soon starts to feel unwell. Nevertheless, attracted by Susan’s voice in the reverberating plughole, the four friends are reunited.

Forester has meanwhile doctored Farrow’s report so as to give DN6 the licence he wants and, disguising his voice as Farrow’s, makes a supportive phonecall to the ministry to the same effect. This is overheard by the local telephone operator, Hilda Rowse, and her policeman husband, Bert, who start to suspect something is wrong.

The Doctor has meanwhile realised the deadly and everlasting nature of DN6 and the probable contamination of Barbara. They try to alert someone by hoisting up the phone receiver with corks, but cannot make themselves heard. Hilda notes the engaged signal, however, and she and Bert become even more concerned. Forester and Smithers return to the lab and correct the engaged handset and then Hilda rings to check things are okay. She rings again moments later and asks for Farrow and, when Forester impersonates him, immediately spots the faked voice and so knows there is something badly wrong. Bert heads off to the house to investigate.

The Doctor and his companions decide to start a fire to attract attention to the house and succeed in setting up an aerosol can of insecticide and a lab bench gas jet as a bomb. This coincides with Smithers discovering the true virulence of DN6 - it's lethal to everything - and demanding Forester stop seeking a licence. Forester spots the makeshift bomb, which goes off in his face. Smithers retrieves the gun as PC Rowse arrives and then places both under arrest.

Their work done, the travellers return to the TARDIS and the Doctor reconfigures the machine to return them to normal size. Barbara, who was on the verge of death, recovers on being returned to full size; the insecticide and seed responsible aboard the TARDIS shrinking to their real microscopic and minuscule sizes.

- The Dalek Invasion of Earth (6 Episodes)

The TARDIS materialises, the Doctor surmising from the surroundings that they have landed in London only to find it devastated and in ruins. It turns out the year is some time after 2164. While climbing a rock face, Susan falls and twists her ankle. Then due to the decay of the surrounding buildings and grounds, a quake tremor causes girders to fall across the TARDIS, blocking the travelers from entering again. Barbara stays with Susan while the Doctor and Ian explore, and the women are taken by a couple of refugees to a nearby shelter in an abandoned Underground station. There they meet resistance members Dortmun (the leader), Carl Tyler, David Campbell, Jenny, Thomson, Baker, and Larry Madison. Dortmun, a paraplegic scientist, has been working on a special type of bomb to destroy the Daleks' outer casings, and he and the others are preparing for an assault on the local Dalek headquarters.

Meanwhile, the Doctor and Ian stumble across bodies wearing strange metal helmets and soon find an army of them and Daleks rising from the River Thames. The Daleks take the Doctor and Ian, along with captured resistance members including Jack Craddock, onboard their saucer, where they convert attempted escapees into Robomen. Ian doesn't understand why the Daleks still exist since the travelers defeated them on Skaro (in The Daleks) but the Doctor reminds him that was far in the future. Sensing that the Doctor is highly intelligent, the Daleks leave a device in the cell with the prisoners which the Doctor solves, enabling them to escape. However, the Daleks are laying in wait and recapture them, drugging the Doctor and sending him to be converted into a Roboman. But the Doctor's transfer operation breaks down while Susan, Barbara and the resistance team attack the Dalek force using the explosives created by Dortmun. But the bombs are ineffective against the Daleks, and several resistance members are injured or killed. David and Susan are able to rescue the Doctor, still drugged, while Barbara gets separated from them and is able to return to the Underground with Jenny to report back to Dortmun. Ian is unable to escape the saucer; he and Larry hide beneath a floor grating as the Daleks and saucer leave for the Dalek mining operations in Bedfordshire.

Before leaving London the Daleks give orders to the Robomen to set firebombs to destroy the city. Hiding from the Robomen near to the TARDIS, David, Susan and the Doctor see the Robomen set up a bomb and leave. The Doctor, still too weak from being drugged, collapses, and David uses some quick thinking to disarm the bomb. He and Susan try to find an escape route through the sewers while the Doctor rests, and they are found by Tyler. After collecting the Doctor, who is starting to feel better, they avoid alligators and Robomen in the sewers as they escape the city and head for the mining operation. As they travel, David and Susan start falling in love, but keep it a secret from the others. Meanwhile, Dortmun, Jenny & Barbara make their way to an abandoned museum also used by the resistance as a hideout, which is deserted. Dortmun, after leaving his notebook for Barbara to find, exits the hideout and confronts the Daleks, sacrificing himself so that the woman have a chance to escape. They get an old truck working and crash their way through the Daleks, heading for the mining operations as Barbara is convinced that's where the Doctor would go. They make it most of the way there before the truck is destroyed by a Dalek saucer.

At the mine, Ian and Larry escape the saucer and meet workers named Wells and Ashton; the latter is killed by an aggressive creature called a Slyther, a pet of the Black Dalek. The predator then falls from a suspended mine cart that Ian and Larry use to try to get away from it, down a mineshaft to its death. The Daleks subsequently send the mine cart down the shaft before Ian and Larry can climb out and they are plummeted down in the cart to the mine operations far underground. The Doctor and his party arrive at the cliffs overlooking the mine, and he sends David and Susan on a mission to the far side of the cliffs to interfere with the radio signals the Daleks use to keep in communication with each other and the Robomen. The Doctor and Tyler begin climbing down into the mine. Barbara and Jenny find a hovel and, seeking shelter, meet two ragged women who are allowed to live on their own because they make clothing for the human slaves at the mine. These women pretend to befriend Barbara and Jenny before reporting them to the Daleks in return for food. The Daleks collect Barbara and Jenny and send them to work in the mine.

After Craddock is killed by his brother, who has been turned into a Roboman, Ian hides in the mine, eventually finding Wells again, also seeing Barbara from a distance. Before he can get to her, however, he ends up hiding and being trapped in a capsule filled with explosives. Barbara uses Dortmun's notebook to bluff the Daleks into believing she has information about an imminent uprsing and demands to speak with the Black Dalek. When she and Jenny are brought before it, they discover that the Daleks are drilling through the Earth's crust so that they can blow out its core with a penetrative explosive capsule and then use a guidance system to pilot the planet around space. As the Daleks set the capsule in position and start the countdown, Ian scrambles the wiring inside the capsule, disarming it. When the shaft opens beneath the capsule he escapes, but a Dalek cuts the rope he uses and he tumbles halfway down the shaft, stopping at a small access node. Leaving by the node he jams a cord of wood across the shaft opening, preventing a re-armed explosive capsule from moving further down the shaft. While Barbara creates a diversion spinning a wild story about an uprising involving "the Boston Tea Party," "General Lee's forces" and "Hannibal attacking from the Alps," Jenny tries to corrupt the machine which contols the Robomen and send them new orders. The Daleks catch them and, after rearming the capsule and launching it, trap the two in the control room to be killed in the explosion. The Doctor and Tyler, hiding outside the control room, enter when the Daleks leave and free Barbara and Jenny. Using the Daleks' scanners they find David and Susan, who destroy the radio beacon, leaving the Robomen adrift and causing a temporary overload within the Daleks, who short circuit. Barbara and the Doctor give new orders to the Robomen to destroy the Daleks, and with the help of the Robomen, Wells and Tyler lead the human slaves in rebellion, destroying the inert Daleks and escaping the mine. Ian reunites with his friends, and before the capsule explodes they all escape back up the cliffs to rejoin Susan and David. The bomb destroys the Dalek fleet and causes an entirely new phenomenon — a volcanic eruption in England.

Back in London, Wells and Tyler help shift the girders away from the TARDIS, and the travelers get ready to leave. Susan has worn a hole in her shoe and the Doctor talks of mending it for her but seems preoccupied and sad. Susan is also awkward and after the Doctor goes back into the ship, she and David walk a short distance away. Declaring his love for her, David begs Susan to stay and marry him, saying he will give her a place to belong and a rooted identity, which earlier she told him she wanted to have someday. Susan agonizes and protests that David is making her choose between him and her grandfather. Tearfully she says she must leave, but admits that she loves him. Suddenly the TARDIS doors slam shut, and the Doctor, with Ian and Barbara at his side, bids Susan an emotional farewell, telling her that although they have always taken care of each other up until now, she is a grown woman and deserves a normal life with David. He promises to return one day, and sets the TARDIS in motion. The blue box disappears, and Susan, stunned, steps where it had been. David says that the Doctor must have known she wouldn't leave him, and so chose to leave her. Taking David's hand, Susan walks away with him, intentionally leaving her TARDIS key behind.

- The Rescue (2 Episodes)

The Doctor, Ian, and Barbara are still missing the Doctor's granddaughter Susan when the TARDIS lands on a planet the Doctor eventually recognises as Dido, a world he has visited before. The trio soon encounter two survivors of a space crash, Vicki and Bennett, who are awaiting a rescue ship that is due to arrive in three days time. Vicki and Bennett live in fear of Koquillion, a bipedal inhabitant of Dido, who is stalking the area. Koquillion encounters the time travellers and attacks, pushing Barbara over a cliff and temporarily trapping Ian and the Doctor. Vicki finds Barbara injured and rescues her from Koquillion, and they share reminiscences. Vicki's father was amongst those who died when the survivors of the crash, save Bennett and Vicki, were lured to their deaths by the natives of Dido. She is evidently very lonely, having befriended an indigenous Sand Beast for company. However, when Ian and the Doctor reach the ship, tempers are fraught because Barbara mistook the Sand Beast for a threat and killed it.

The Doctor enters Bennett's room, and finds things are not as they seem. The supposedly crippled Bennett is missing, and a tape recorder hides his absence. He finds a trap door in the floor of the cabin and follows it to a temple carved from rock where he unmasks Koquillion as Bennett. Bennett reveals he killed a crewmember on board the ship and was arrested, but the ship crashed before the crime could be radioed to Earth. It was he who killed the crash survivors and the natives of Dido to cover his crime. He has been using the Koquillion alias so that Vicki would back up his story, and had hoped the planet would be destroyed when his version of events was given. Just as Bennett is about to kill the Doctor, two surviving native Didonians arrive and force Bennett to his death over a ledge. They then stop the signal to prevent the Rescue Ship reaching their planet. With no living family and nothing left for her on Dido, Vicki is welcomed aboard the TARDIS.

- The Romans (4 Episodes)

With the TARDIS stuck at the bottom of a cliff, the four time travellers have installed themselves in an unoccupied Roman villa. As the Doctor and Ian recline, Barbara and Vicki walk to a nearby Roman village. They are spotted by two slave traders, Didius and Sevcheria. When they return to the villa the Doctor announces that he is off to Rome, some miles away, and will travel there with Vicki. Later that evening Barbara and Ian, now alone, are relaxing when the two slavers burst in upon them. They are soon overpowered and taken prisoner. Ian is sold to one slave owner, while Barbara is to be traded with another and sent to Rome.

The Doctor and Vicki are en route for Rome when they find the murdered body of a lyre player named Maximus Pettulian. The Doctor is holding the man’s lyre when a centurion arrives and mistakes him for the dead man who is late for an engagement in Rome. The centurion accompanies them to Assisium. Once there, the centurion contacts the assassin Ascaris, who killed the real Pettulian, and instructs him to kill the Doctor.

The Doctor overpowers the assassin and drives him away. The centurion has fled, and the Doctor concludes the soldier was in league with the assassin. He decides to maintain his alias as Pettulian and head to Rome. Barbara is already there and is sold Tavius, who is highly placed in the court of the Emperor Nero. She is to be a handmaiden to Nero's second wife, the Empress Poppaea Sabina.

The Doctor and Vicki arrive at Nero's court and encounter Tavius, who seems to imply to the Doctor that Pettulian is part of a secret network in which he is also a player. They find the body of the centurion who imperilled them earlier.

Ian has been confined to a galley in the Mediterranean but the craft runs into rough seas and is broken up. He is washed up on the nearby shore and there is found by another survivor of the galley, Delos. They agree to head for Rome in search of Barbara. When they reach there they are captured by some centurions and taken to the arena to be trained as gladiators.

It becomes apparent to the Doctor that Tavius had the centurion murdered. Nero organizes a banquet in his honour at which he must play the lyre. He also takes a shine to Barbara much to the anger of Poppaea, who decides to have her poisoned at the Pettulian banquet. However, Vicki switches the poison goblet. Barbara has just left the banquet chamber when the Doctor arrives, warning Nero that his wine is poisoned.

The Doctor picks up his lyre with the warning that only those with the most sensitive and perceptive hearing will be able to discern its subtle melody. He then creates absolutely no sound but no-one wishes to make themselves out to be philistines by not appreciating the music. Nero is not convinced and decides to have Pettulian fed to the lions.

At the arena Ian and Delos are set to fight each other. However, they decide to fight their way out of the arena; Ian shouts to Barbara that he will be back to rescue her. The Emperor calls off his soldiers, planning to have him killed when he returns to rescue Barbara.

The Doctor has found the architectural plans for Nero’s new Rome, and deduces that since the year is 64 AD that the Emperor is planning to destroy the city. Tavius arrives and warns the Doctor that the Emperor is planning to kill him too, advising him to complete his mission and kill Nero soon - Pettulian was an assassin all along. The Doctor and Vicki decide to leave quickly but before departing "accidentally" set fire to Nero’s architectural plans. Nero notices this and decides to burn down the city, thanking the Doctor and deciding after all to spare his life. A rabble are bribed into starting the blaze and while anarchy rages Ian is helped into the palace by Tavius, who reunites him with Barbara. Under Tavius' eye the two are allowed to escape and make their way from Rome and back to the villa. Delos helps them get clear of the palace. The Doctor and Vicki also escape the city, watching it burn from a nearby hill. All four leave in the TARDIS but have barely begun to travel when a strange force starts dragging the ship to an unknown location.

- The Web Planet (6 Episodes)

An unknown force pulls the TARDIS off course and onto the planet Vortis. The Doctor and Ian investigate and try to find the source whilst Barbara tends to a disoriented Vicki who has been affected by the natural high-frequency communications of the ant-like Zarbi monitoring the TARDIS. Vortis is a thin-atmosphere planet with natural crag-like rock formations and what appear to be pools of acid. The Doctor recognises the planet from the remains of a dead grub-like creature; however, he is puzzled by the presence of moons around what should normally be a moonless planet.

Meanwhile, inside the ship, Barbara is influenced by an unknown force through her gold bracelet. This force mesmerises her and draws her outside, leaving Vicki alone in the untended TARDIS. The TARDIS begins sliding across the planet's surface, apparently being pulled by an unseen force. In her trance, Barbara walks into a trio of butterfly-like Menoptra – all that remains of a reconnaissance force sent to prepare the way for an invasion spearhead. They free her of the trance by removing her bracelet, and then debate what to do with her. Barbara escapes; however, she is immediately captured by the Zarbi and brainwashed through the use of a gold neck-harness. The Zarbi take her back to the Menoptra, killing one and capturing another, whilst the third escapes. The Zarbi take Barbara and a Menoptra called Hrostar to the Crater of Needles, where they are forced to gather vegetation and drop it into rivers of acid, thereby feeding the central force of the Zarbi, called the Animus.

The Doctor and Ian, having discovered the theft of the TARDIS and a trail leading away, begin tracking it. They are captured by the Zarbi and are taken to the Carsinome, where they find Vicki and the TARDIS. There they indirectly meet the Animus, who talks to the Doctor through what appears to be a mental communications device. The Animus forces the Doctor to help it track down the Menoptra invasion spearhead and the following main invasion force of the Menoptra. Ian escapes, whilst the Doctor, who has already worked out the invasion plans of the Menoptra, and Vicki try to bide their time.

Ian, trying to find Barbara, meets with a Menoptra called Vrestin, the only escapee of the Zarbi ambush. He learns from Vrestin that the Menoptra were native to the planet Vortis along with the Zarbi, until a great evil force, the Animus, slowly and gradually took control of the planet through the mindless Zarbi. By the time the Menoptra had noticed this it was too late, and they had to flee the planet. The Menoptra fled to the moons that had been pulled into orbit around Vortis by the great evil force of the Animus – the same force that had pulled the TARDIS off course. The Zarbi soon locate Ian and Vrestin, but they manage to escape by falling down into an underground tunnel, where they meet the Optera. Ian soon realises that the Optera are descendants of the Menoptra, who had fled underground. The Optera had lost their wings through the generations and consider the Menoptra as gods, although they don't recognise Vrestin as a Menoptra. Ian and Vrestin convince the Optera to join them in fighting the Animus.

Back in the Carsinome, the Doctor accidentally releases a bit of information about the Menoptra invasion force, particularly that the spearhead plans to land at Sayo Plateau just north of the Crater of Needles. The Animus uses this information to ambush the spearhead. Barbara and Hroster escape from the Crater of Needles and try to meet up with the spearhead and also to warn them of the ineffectiveness of their weapons against the Zarbi. They fail to convince the spearhead force of the uselessness of the weapons, and the spearhead Menoptra are massacred by the Zarbi forces. Only a few survive and manage to hide in one of the Menoptra's old temples. There they try, without success, to radio the main force and warn them that their weapons are useless against the Zarbi.

Meanwhile, the Doctor works out that the Animus uses gold as a conductor to channel a mesmerising force. He counteracts this force and then uses the hidden power of his ring to control one of the Zarbi. The Doctor escapes with Vicki and his captive Zarbi, and meets up with Barbara and the Menoptra. They all devise a plan to attack the Carsinome, with the Menoptra acting as a diversionary force whilst the Doctor and Vicki try to reach the Animus with the Isop-tope device, a living-cell destructor.

The Doctor and Vicki make their way back to the Carsinome, where they are taken to the centre to see the Animus, a great spider-like creature. Here they are mesmerised and made helpless by the Animus. Meanwhile, Barbara and the Menoptra attack the Carsinome from the outside, using the Doctor's ring to control a Larvae Gun, the Zarbi's living weapon. At the same time, Ian, Vrestin and the Optera try to dig their way to the Animus from below. They all make it to the centre and to the Animus where, with a singular act of willpower, Barbara manages to use the Isop-tope device on the Animus, destroying it.

In the end, with the Zarbi free from the control of the Animus and the Menoptra and Optera free to live on Vortis, the Doctor, Ian, Barbara and Vicki leave in the TARDIS.

- The Crusade (4 Episodes)

The TARDIS materialises in 12th century Palestine, during the time of the Third Crusade. When the Doctor, Ian, Barbara, and Vicki emerge, they find themselves in the middle of a Saracen ambush. In the confusion, Barbara is seized by a Saracen from behind, while the rest of the TARDIS crew stop the attackers from killing William de Tornebu, an associate of King Richard. They realise Barbara is missing, but she has been gagged and is being tied up by the Saracens. William des Preaux, another companion of the king, is also captured by Saracens and pretends to be Richard in order to protect him. The Doctor, Ian, and Vicki agree to take the wounded de Tornebu back to Richard's court, but first must steal clothes from the market in order to blend in. They call Barbara's name, but though she can hear them, she is unable to cry out and is taken away by the Saracens.

Meanwhile, des Preaux and Barbara are presented to Saladin's brother Saphadin by El Akir, who mistakenly believes them to be King Richard and his sister Lady Joanna. When des Preaux reveals their true identity, El Akir is furious but, before he can act, Saladin emerges from hiding and prevents any violence from occurring. Saladin is intrigued by Barbara, who tells tales of having met Nero, and tells her she can become the new Scheherazade.

The disguised Doctor and company bring the injured de Tornebu to the King's court. They are met by Richard, who witnessed their fight during the ambuscade. The King, however, is in a foul mood, and treats the TARDIS crew very curtly. Ian, anxious to rescue Barbara, asks for the King's help in rescuing her, but the irritated monarch tells Ian that Barbara can remain with Saladin until her death.

De Tornebu and the Doctor are able to convince the King to change his mind by playing up the embarrassment Saladin will feel when it's revealed he has not actually captured the King. Richard is amused, and asks the Doctor to join his court. Ian is knighted "Sir Ian of Jaffa" so that he may serve as a proper emissary, and is sent to Saladin's court to both request the release of des Preaux and Barbara, and to offer the hand of the real Lady Joanna in marriage to Saphadin in order to create peace. When Joanna learns of these plans, she is infuriated, and tells her brother she will not consent.

Ian, after delivering his message to Saladin, asks leave to continue to search for Barbara, which Saladin grants. During his search Ian is attacked by bandits and knocked out. When he claims to have no money, one of the bandits, Ibrahim, ties him down with stakes in the hot sun and daubs him with honey. He tells Ian the ants will loosen his purse strings.

Barbara is kidnapped by El Akir and taken to his dominion, but manages to escape, and is taken in by Haroun ed-Din, who defeats a guard looking for her. He is sympathetic because El Akir killed his wife and kidnapped his daughter, and now Haroun is looking for revenge. Haroun leaves to attack El Akir, but is knocked out by soldiers. They go to Haroun's house, recapture Barbara, and bring her to El Akir. El Akir taunts Barbara with threats of death, but she once again manages to escape, this time hiding out in the Emir's harem. El Akir tries to find Barbara, but she is hidden by a sympathetic harem girl.

Ian eventually tricks Ibrahim into untying his feet, and overpowers him. Ian convinces the bandit to accompany him to Lydda and aid him in his quest for Barbara. Meanwhile, Barbara convinces the harem girl, Maimuna, to help her get out of the castle. It turns out Maimuna is Haroun's long lost daughter and, when she finds out her father is still alive, joyfully agrees to help. Before they can do so, another harem girl, Fatima, betrays them and El Akir bursts in on the two women.

El Akir is about to attack Barbara when Haroun arrives in the nick of time and fatally stabs El Akir. Fatima screams, and two guards burst in. Ian arrives, and he and Haroun subdue the guards. Haroun and Maimuna are reunited, and Barbara and Ian head for the TARDIS.

The Doctor, who has been trying not to get caught up in court politics, attempts to make a break for the TARDIS. He is caught by the Earl of Leicester, who thinks the Doctor is a spy for Saladin. He sentences the Doctor to death. Ian arrives and, presenting himself as "Sir Ian of Jaffa," tells Leicester that the Doctor is a spy and that he is here to carry out the execution. The Doctor plays along and asks for one last chance to see Jaffa before he dies. Leicester agrees, and the Doctor is able to sneak away to the TARDIS with the rest of the crew and leave. When Leicester and his knights see the TARDIS vanish, they agree to keep the story quiet, so as not to look like fools.

On board the TARDIS, the crew enjoy a good laugh over their escape. As the TARDIS prepares to land, the power fails and all the interior lights dim. The crew freeze into immobility.

- The Space Museum (4 Episodes)

The TARDIS arrives near a vast Space Museum on the planet Xeros, but has jumped a time-track. The First Doctor, Ian Chesterton, Barbara Wright and Vicki have a series of bizarre experiences as they venture outside and into the Museum – not least that they see but cannot be seen by the militaristic Moroks who run the museum, or the servile indigenous Xerons who work for them. The museum contains fascinating exhibits, including a Dalek shell, but the most worrying is the four travellers themselves encased and on display. Quite soon afterward the time track slips back and, though the exhibits of the TARDIS and the four travellers vanish, they still find themselves inside the Museum.

The head of the Moroks, Lobos, is a bored and desperate museum administrator and colony governor, who reflects sourly that the glories of the Morok Empire are past. Like Rome, the Empire became decadent and then declined. The Moroks have found the TARDIS and now start tracking down the occupants who have, as usual, become separated. The Doctor is the first to be found, but evades their interrogation tactics.

Meanwhile, Vicki has made contact with the Xerons and, hearing of their enslavement, aids them in their plans to stage a revolution. They attack the Morok armoury and Vicki outwits its controlling computer. With their new weapons, the Xerons are able to begin a revolution, which slowly takes hold.

Ian has meanwhile freed the Doctor from Lobos, who had begun the process of freezing him and turning him into an exhibit. Ian and the Doctor are quickly recaptured by the Morok guards, and Barbara and Vicki are captured shortly thereafter. With all four held prisoner in the Museum, it looks like the time track prediction of their future as museum exhibits will soon be realised after all.

Help comes from the Xeron revolutionaries, who kill Lobos and the other Morok captors. The Xerons then go about destroying the hated Museum as the TARDIS crew slips away. They take with them a time/space visualiser as a souvenir. On the planet Skaro, their departure is noted by the Daleks.

- The Chase (6 Episodes)

In the TARDIS, the four travellers are huddling around the Time-Space Visualiser, a television-like souvenir from their recent adventure at the Space Museum, which can pick up on any past event in the whole of time and space. The TARDIS then lands, and the Doctor confirms that the conditions are hospitable. Ian and Vicki leave to explore the desert wilderness. They find an ancient trap door in the sand. Inside, they are trapped — and become haunted by hostile tentacle creatures called Mire Beasts.

Meanwhile, the Doctor and Barbara are sunbathing. But they see on the 'Visualiser' a "broadcast" of the Daleks preparing to give a report. The Daleks' plan to follow "the enemy time machine" (the TARDIS) to the Sagarro Desert on the planet Aridius. The Daleks plan to take the TARDIS, find the Doctor and his companions, and exterminate them. The Doctor and Barbara watch the Incursion Squad embark and dematerialise. The Doctor immediately realises that these events happened in the past — the Daleks may already be here. They must find Ian and Vicki and leave immediately.

After a sandstormy night the Doctor and Barbara see the Daleks emerging from the sands. The Daleks cannot find the time travellers, but they do locate the TARDIS under the sand and begin to have it dug out by a group of native Aridians, whom they have enslaved. The slave force is exterminated when they are of no further value. The Doctor and Barbara are saved by other amphibious humanoid Aridians. The Aridians also find Vicki and Ian, who were injured when a wall collapsed in an explosion used to kill the Mire Beasts that were threatening them. The Mire Beasts soon reappear, killing the Aridian Malsan who was holding the party prisoner in preparation for the handover. The Doctor and his friends flee in the confusion and manage to evade a Dalek scout and get back to the TARDIS.

There now follows a chase through time and space, with the Dalek vessel determined to track down and exterminate the Doctor and his friends. The Daleks are but fifteen minutes behind and the gap is closing. The first stop is the top of the Empire State Building in New York in 1966. The Doctor then reaches the Atlantic Ocean and boards the sailing ship Mary Celeste. The crew ventures outside and are mistaken for stowaways. They sneak away in the TARDIS as the crew searches the ship for them. Soon the Daleks arrive and the frightened crew abandons ship, all jumping overboard. The next point of landing is a mysterious old house where both Dracula and Frankenstein's monster have come alive. These terrors stalk the building but also attack the Incursion Squad when they arrive. In the confusion to depart, the Doctor, Ian and Barbara leave Vicki behind, never realising they have simply been visiting a futuristic theme attraction called the Festival of Ghana, in 1996. The Daleks are repelled back into their vessel by the monsters (who are in fact robots), and Vicki stows away aboard the Dalek ship. She travels in it to the jungle world of Mechanus, where the Doctor's TARDIS has already landed.

On the Dalek ship, Vicki witnesses the Daleks' Replicator machine in action: an android replica of the Doctor is produced and is programmed to kill the original Doctor and his companions. When the Dalek ship arrives on Mechanus, the robot killer is dispatched. The jungle is also hostile, with large fungoid plants, which attack humans and only retreat when exposed to light. After a while the four travellers are reunited but the robot Doctor also appears. Both Doctors claim to be real one and a fight ensues between Ian and the real Doctor. The robot Doctor mistakenly calls Vicki by the name of Susan. Barbara realises the mistake and yells at Ian that this is the robot. The real Doctor disables it with his stick.

The next morning, the Doctor notices that there is a vast metal city over the jungle, and they all decide to venture into the structure. Within moments, robot Mechonoids arrive and capture rather than invite them into the city. There they are locked in a cage-like room with a dishevelled man named Steven Taylor, an astronaut from Earth who crash-landed on the planet two years earlier and has been kept as a prisoner by the Mechonoids since then. The Daleks now attack the city, so it is time for action. The Doctor and his party and Steven manage to escape from the city down some cables, while the Mechonoids and Daleks become involved in a pitched battle which devastates both sides as well as the building. The four companions flee to safety but are separated from Steven, whom they presume to have been killed.

They find the deserted Dalek time machine and persuade the Doctor to show Ian how to operate it. After a tearful farewell, Ian and Barbara return to their own planet at last — and almost to their own time, being two years out in London of 1965. The machine is destroyed using the auto-destruct mechanism once Barbara and Ian are out of it.

- The Time Meddler (4 Episode)

The Doctor and Vicki find Steven Taylor aboard the TARDIS after he stumbled in in a disorientated state on Mechanus (The Chase). When the TARDIS lands on a rocky beach and the Doctor establishes the century from a discarded Viking helmet and heads off to the village. Steven and Vicki explore the cliffs above, witnessed by a Monk. The TARDIS is soon after spotted by a Saxon villager, Eldred, who runs to tell the headman of his village, Wulnoth. The Doctor encounters Edith, Wulnoth’s wife, and convinces her he is a harmless traveller while probing for more information. He finds out it is 1066, since Harold Godwinson is on the throne and has not yet faced Harold Hardrada at Stamford Bridge let alone William the Conqueror in the Battle of Hastings. At a nearby monastery, monks are heard chanting. The Monk lets the Doctor in and allows him to prowl around and find a gramophone playing the chant, plus modern conveniences such as a toaster and a teapot. The Monk traps the Doctor in a cell.

Steven and Vicki encounter Eldred and notice he has a wristwatch that the Monk dropped earlier. They spend the night in a clearing and the next morning are ambushed by the Saxons and taken to the village council. They convince Wulnoth they are but travellers and are given provisions to travel on. Vicki is heartened to hear from Edith that the Doctor passed by her hut on his way to the monastery. Steven and Vicki visit the monastery, where the Monk tries to dissuade them from entering but gives himself away by describing the Doctor too accurately. Steven and Vicki decide he must be prisoner inside. They break in after dark.

The Monk sees a Viking ship on the horizon. The Vikings land and two small groups are sent to search the area. One of the Vikings finds and attacks Edith, and the Saxons go hunting for the invaders. The Vikings are drunk and the giant that attacked Edith is cut down. His companions, Sven and Ulf, flee. Eldred has been badly wounded and Wulnoth takes him to the monastery for help.

Steven and Vicki find the gramophone. They then manage to leave the monastery via a secret passage. Steven and Vicki have found that the TARDIS has been submerged beneath the incoming tide. They resolve to return the monastery to look for the Doctor.

The Doctor has escaped by the same passage himself and returns to the Saxon village. He soon hears of the Viking scouting party and decides to head back to the monastery to track down Steven and Vicki. The Doctor has the upper hand when the Monk answers the door and believes he is being held at gunpoint. The Monk is being questioned by the Doctor when they are overpowered by the two Vikings, Sven and Ulf. In the ensuing confrontation the Monk slips away, leaving the Doctor the Vikings' prisoner. The Doctor knocks out Sven and elsewhere the Monk does the same to Ulf.

The Monk uses his freedom to persuade the villagers to light beacon fires on the cliff tops, telling them that he is expecting materials by sea, when in fact he wishes to lure the Viking fleet to land. Wulnoth agrees to light the fires, but does not do so as he realises the danger.

Steven and Vicki return to the monastery via the secret passage and investigate the crypt, where a heavy power cable emanates from a sarcophagus. Look inside, they discover that it is the Monk's TARDIS and that he must have come from the same place as the Doctor. The Monk has returned to the monastery and is once more under the Doctor’s control. He reveals his plan is to lure the Vikings to the coast and destroy the fleet with atomic bazookas. This would shore up King Harold to such an extent he would not then lose the Battle of Hastings. The Monk is a Time Meddler. The Doctor denounces the Monk for seeking to alter history and forces him to reveal his TARDIS, where they find Steven and Vicki. Together the time travellers piece together the Monk’s plot, which the Monk insists is intended to stabilise England and benefit Western civilisation.

Ulf and Sven have formed an alliance with the Monk and have tied up the Doctor’s party while the three of them take the bazooka shells down to the cannon on the beach. The scheme is foiled however when Wulnoth and the Saxons arrive and engage the fleeing Vikings in a nearby clearing, killing Sven and Ulf in battle.

The Monk hides while the fighting rages, little knowing that the Doctor and his friends have been freed and are tampering with his TARDIS. With his scheme in ruins, the Monk decides to leave and returns to his TARDIS, though the Doctor left a note assuring the Monk his meddling days are ended. When the Monk looks inside he realises the Doctor has taken the dimensional control and the interior of his ship has shrunk beyond use, leaving him stranded in 1066. The tide having gone out, the Doctor and his friends are free to leave.

  • Series 3 (1965 - 1966)

- Galaxy 4 (4 Episodes)

The Doctor, Vicki, and Steven Taylor arrive on an eerily silent planet and encounter curious small robots, which Vicki names Chumblies. It is unclear whether the robots are hostile, when one is disabled by a party of female, cloned Drahvins, from the planet Drahva in Galaxy 4. It is revealed that this unknown planet is also in Galaxy 4, but is not given a name. The Drahvins are dominated by their leader, Maaga, who treats her other warriors with bullying contempt. The Drahvins are at war with the reptilian Rills, the masters of the Chumblies, and both races have crashed spaceships on this planet.

The planet will be destroyed in 14 planetary cycles and, with the Drahvin ship irreparable, Maaga and her warriors are keen to capture the Rill ship, which they believe has been made functional again. Maaga paints a picture of the Drahvins as the attacked species in the scenario, but the Doctor has witnessed some of the Drahvin aggression and is clearly not convinced. He also reworks the probability on the planet’s destruction and calculates it will break up in just two days' time. The Doctor tries to keep this new finding from the Drahvins, but Maaga reveals her true colours and forces the truth from him at the point of a gun.

With Steven held as hostage to ensure their co-operation, the Doctor and Vicki are sent by the Drahvins to try to seize control of the Rill ship. The Doctor works out that the Rills are a very advanced species: when he meets one he is impressed, not least by their telepathy. The ugly, horned, ammonia-breathing Rill explains that the Rills have offered to take the Drahvins away with them but Maaga has refused, preferring to maintain the state of war she began when the Drahvins shot down the Rill craft. The Doctor tells the Rills of the true life remaining in the planet and promises to help them escape, since the solar energy converters on the Rill craft have not gathered enough power to effect a lift-off.

The Doctor and Vicki return to the Drahvin ship to find Steven unconscious after Maaga has tried to kill him by leaving him in a depressurised airlock. They all then return to the Rill vessel, where the Doctor successfully develops a power converter linked to the TARDIS, which charges the Rill craft. Maaga leads the Drahvins in a final assault on the Rill craft, but the Chumblies defend their ship long enough for it to power up and leave the planet. One Chumbley left behind to aid the time travellers helps them get back to the TARDIS. Once the ship leaves, the planet explodes, with the Drahvins perishing on the dying world.

The story ends with a lead in to "Mission to the Unknown" with Vicki looking at a planet, and wondering what is happening on it. The action then switches to the planet, where Jeff Garvey in a jungle is repeating "I must kill".

- Mission to the Unknown ( 1 Episode)

On the planet Kembel, Marc Cory and Gordon Lowery are trying to repair their spaceship, while another crewmember, Jeff Garvey, is lying on the ground, out of their sight. He awakes, in pain and in a violent state of mind. He keeps behind the ship to make sure that neither of the men sees him. He raises his gun to fire at Lowery, but Cory sees Garvey and shoots him. Cory pulls a long thorn out of Garvey from behind the ear. He warns Lowery that if he stung himself on it he would have to kill him too.

The two men go into the spaceship, leaving Garvey's body. Garvey’s hand begins to twitch and hair and thorns start to grow all over his body. He is becoming a Varga plant. Cory has a licence to kill from the Space Security Service and enlists Lowery to help him. Cory explains that the Daleks have been gaining control of many planets and that a Dalek spaceship has been spotted in this solar system.

Cory tries to contact their rendezvous ship, but cannot get through, and their own ship is beyond repair. Cory believes the Daleks have a base on Kembel and that is why he and Lowery are there. He explains that the Varga plant is native to the Daleks' home planet Skaro and that you become a Varga plant if you prick yourself on it. This is further evidence that the Daleks could be on Kembel.

In the Dalek city on Kembel, the Dalek Supreme waits to be updated on the latest developments. He is told that the representatives from the seven planets will be arriving for a meeting. He tells a Dalek to destroy Cory and Lowery.

Elsewhere in the Kembel jungle, the Daleks are discussing how to exterminate the humans. Lowery (who is building a rescue beacon) and Cory are more concerned with the Varga plants than the Daleks. A spaceship flies above them and they realise the Daleks are planning something big.

Lowery finishes the rescue beacon and is about to record a message when they notice something moving in the jungle. They duck behind some bushes as four Daleks enter the landing area and destroy the ship. Cory and Lowery head deeper into the jungle and Lowery discovers a Varga thorn in his hand.

In the Dalek city, the representatives from the seven galaxies have gathered in a conference room. They are worried about the humans, who they believe are hostile, but the Daleks assure them that the humans will be dealt with. The representatives all approve the Dalek plans to conquer Earth.

Cory discovers that Lowery is becoming a Varga plant and kills him. Cory then picks up the rescue beacon and starts recording his message. The Daleks find and exterminate him, but the beacon and the message survive. All the representatives pledge an alliance with the Dalek cause and start to repeat "Victory."

- The Myth Makers (4 Episodes)

The Greek army has besieged the city of Troy for ten years. On the plains just outside the city the Greek warrior Achilles slays the Trojan Hector, a son of King Priam, when the materialisation of the TARDIS disturbs Hector's concentration. When the Doctor emerges from within the TARDIS, Achilles believes him to be the god Zeus disguised as an old beggar, and insists he accompany him to the Greek encampment. En route they encounter the warrior Odysseus who goes with them to the Greek camp. When they arrive, Agamemnon insists the Doctor help him against the Trojans, and will not let him go until he does. Odysseus believes the Doctor is a Trojan spy.

The Doctor's companions Vicki and Steven have watched him being led away. Vicki still has an injured ankle from a previous adventure in Galaxy 4, so Steven goes out alone to try to help the Doctor. He is spotted heading for the Trojan camp by Cyclops, a servant of Odysseus, who reports this to his master. Odysseus catches Steven and takes him to the Greek camp as well. The Doctor eventually persuades the Greeks to spare Steven until the next morning, when he will strike down "the spy" with a heavenly thunderbolt. Moments later Cyclops returns to the Greek camp, and through sign language communicates that Zeus' temple (the TARDIS) has disappeared from the plains of Troy.

The TARDIS has been taken within the walled city of Troy as a prize and is presented to King Priam by his son Paris. The blue police box is denounced by Priam's daughter, the prophetess Cassandra, as dangerous – she has dreamt that the Greeks will leave a gift on the plain which will contain soldiers to attack the Trojans. She demands that the TARDIS be burnt and a pyre is constructed around it, but before it can be set alight, Vicki emerges from within the TARDIS and this is taken as a sign from the gods. The King and Paris are enchanted by her, dressed as she is in a wonderful gown, and the King renames her Cressida and makes her a favourite at court. This enrages Cassandra, who believes Vicki to be a rival prophet.

Priam sends Paris out on to the plains once more to avenge Hector. Paris calls for his rival Achilles to present himself, and Steven manages to persuade the Greeks to send him in Greek armour instead, hoping he can get himself injured and then taken prisoner to Troy to search for Vicki. Adopting the name Diomede, Steven engages Paris in battle and his ruse works. When he arrives, Vicki greets him with his real name and this is taken by Cassandra as a sign they are both spies. Steven and Vicki are taken to cells. Priam's son, Troilus, who has formed a romantic attachment to "Cressida", visits Vicki. She seems successful in persuading him to try to get them released.

The Doctor proposes the use of a wooden horse to Odysseus. The construction will be left on the plains outside Troy and filled with Greeks, who hope the horse will be taken within the city. Agamemnon approves the plan, but it is also decided that the Doctor will be among those inside the horse. When day breaks, it is spotted by the Trojans and dragged inside their city. The Trojans respond to the seeming disappearance of the Greek army by rejoicing, and Priam has Vicki released in thanks for her supposed good work. Steven, however, is kept in prison due to Troilus' jealousy.

The Doctor finds Vicki in the carnage and they hide in the TARDIS while Katarina, who has been trailing Vicki, obliges the Doctor by searching for Steven. She finds him fighting a Trojan soldier and he is badly wounded, but she helps him return to the Doctor's "blue temple". Odysseus arrives and the Doctor takes the opportunity to dematerialise the TARDIS with Steven and Katarina on board. Vicki, however, has slipped away with his blessing. She walks to the plains where she finds Troilus and they declare their love. Moments later Troilus' cousin Aeneas arrives with reinforcements and helps them escape.

- The Daleks' Master Plan (12 Episodes)

Some six months after the events of "Mission to the Unknown", the TARDIS arrives on the planet Kembel, and the Doctor leaves the TARDIS to try to find medical aid for the wounded Steven, leaving him with the Trojan servant girl Katarina. Meanwhile, a Space Agent, Bret Vyon is also on the planet trying to find out what happened to Agent Marc Cory. After a less-than-amicable meeting with the TARDIS travellers in which he holds them at gunpoint and demands to be taken away from the planet, Vyon cures Steven and agrees to work with them to escape and warn Earth of the massive Dalek-led alliance that is amassing on the planet. Part of this alliance is the treacherous Guardian of Earth, Mavic Chen, who has brought a sample of the extremely rare Taranium, which will become a part of the Daleks' ultimate weapon, the Time Destructor. The Daleks soon learn of their presence on the planet and the Dalek Supreme gives the command that Operation Inferno is to be carried out- burning down the jungle. The travelers shelter at the Dalek city. The Doctor manages to steal the Taranium by impersonating delegate Zephon, and he, his companions and Bret escape on Chen's ship, termed a Spar.

The Daleks exterminate Zephon for allowing the Doctor to impersonate him and they cause the Spar to crash on Desparus, a penal planet where prisoners are left to fend for themselves. Mavic Chen also departs for Earth in a temporary ship, wanting to find out exactly who the people who stole the Taranium are. On Desparus, the Doctor is able to effect repairs, and they manage to escape when the pursuing Dalek ship itself crashes upon arrival. However, a convict named Kirksen sneaks aboard the Spar prior to take-off and holds Katarina hostage in the airlock once the ship has left Desparus. He demands to be taken to Kembel or else he will kill Katarina, but she sacrifices herself by opening the airlock, blowing the two out into space. The Daleks warn Chen that the fugitives will be heading for Earth to inform them of their presence on Kembel, and order him to kill them on sight and snatch the Taranium core himself. Chen worries that this make the Space Security Service realise he is a traitor, so he instead tells everyone on Earth that the Taranium core is actually a vital substance needed to keep the peace. Space Security Agents patrol all corridors and guard all offices, and all landing bays are monitored for the arrival of Chen's Spar.

After mourning Katarina's loss, the party arrives on Earth and meets a contact of Vyon's, who turns out to be in league with Chen. Bret kills him but seconds later another Space Agent, Sara Kingdom arrives and kills Vyon (who it later transpires is actually her brother) and attempts to get the Taranium from the Doctor and Steven but they are able to escape the office. She pursues them to a laboratory, where the three are caught in the middle of a molecular dissemination experiment and are inadvertently transported to Mira, a planet populated by savage invisible creatures, where the three enter into an uneasy alliance. They are constantly attacked by the creatures, the Visians and try to take shelter.

On Earth, Mavic Chen stresses out, believing that the Taranium was destroyed during the transportation. However, the scientists carrying out the Dissemination inform him that the computers are registering that the matter that has been transported (a cage of mice) has successfully arrived on Mira. Chen angrily says that this is no evidence that the taranium wasn't broken up into pieces. He believes he will be exterminated by the Daleks for his failure, so when he makes his report to them, he says he lured the fugitives into the laboratory, as their presence on Earth would have caused suspicions of the Dalek plan, and tells them to pick up the Taranium from Mira whilst he returns to Kembel. When the Daleks arrive they too are attacked by the invisible creatures, and the Doctor, Steven and Sara are able to commandeer the Dalek ship and escape. It turns out that the Daleks can pilot the ship remotely and bring it back to Kembel, but the Doctor is able to create a fake Taranium core, which they hand over to the Daleks before escaping Kembel.

After a brief interlude in which the Doctor and his companions journey to a police station in 1960s England and then a silent film set in America, the trio toast Christmas, and the Doctor breaks the fourth wall by wishing a happy Christmas to the viewers at home.

On Kembel, the Daleks test the Time Destructor on delegate Trantis. It has no effect, and the Daleks realise it is a fake. A taskforce of Daleks disembarks to chase the travellers, intending on recapturing the real core. Meanwhile, The TARDIS next arrives on a volcanic planet where the Doctor has a run-in with his old enemy, the Meddling Monk, who attempts to sabotage the TARDIS in revenge for the Doctor previously stranding him in 11th century England. The Doctor is still able to fly the TARDIS to Ancient Egypt, though he has to stop there for repairs. The Monk follows him, as does the taskforce of Daleks and Mavic Chen. The Monk, Sara and Steven end up being captured and used as hostages, and without time to create another fake, the Doctor is forced to hand over the real Taranium core. They are only able to escape with their lives when some Ancient Egyptians attack the Daleks which they describe as 'war machines'. Knowing that the Daleks will now carry out their invasion, the Doctor steals the directional control from the Monk's TARDIS, so that they can return to Kembel and stop the Daleks. The Monk, meanwhile, unwittingly ends up on a desolate, icy planet, and realises he can no longer control the destination of his TARDIS.

The Doctor is able to return the TARDIS to Kembel, where Steven and Sara (who get briefly separated from the Doctor) discover that the Daleks have turned on their allies, including Chen, and imprisoned them before apparently leaving the planet. The two TARDIS travellers free the alien leaders, and they leave to persuade their governments to ally against the Daleks, though Chen appears to die when his Spar explodes during take-off. Steven and Sara then find an underground base being used by the Daleks, only to be captured and held at gunpoint by a delusional Chen, who marches them into the base and the Dalek control room. He tries to proclaim himself the leader of the Daleks, but they dismissively kill him.

Now reunited with his companions, the Doctor activates the fully assembled Time Destructor. Knowing that the device will quickly begin ageing anything in its vicinity, the Daleks allow the Doctor to escape with Steven and Sara. Steven goes ahead back to the TARDIS, but Sara insists on accompanying the Doctor. The two are unable to get back to the TARDIS before the Time Destructor reaches full power, and Sara is aged to death and reduced to dust metres away from the TARDIS. Steven helps the Doctor back inside and freed from the Destructor's influence the two are left weakened, but alive and back to their original ages. The Daleks try to destroy the Time Destructor, but instead cause it to run out of control, resulting in it destroying the Daleks and all life on the planet. The Doctor and Steven emerge from the TARDIS, and Steven is distraught over the deaths of Bret, Katarina and Sara, while the Doctor can only contemplate the "terrible waste" that has taken place.

- The Massacre of St Bartholomew's Eve (4 Episodes)

The arrival of the TARDIS in Paris, France in 1572 places its occupants, the First Doctor and Steven Taylor, in a dangerous situation. Tensions between Protestants and Catholics are at fever pitch in the city –- with younger hotheads like Gaston, Viscount de Lerans, a Protestant Huguenot nobleman, and Simon Duval, a Catholic, drawn into violent confrontation in a tavern. Despite the danger, the Doctor heads off alone to visit the apothecary Charles Preslin, leaving Steven to drink alone but warning him to keep out of trouble. Moments later, Steven attracts the attention of the landlord of the tavern for not settling his bill, but is helped out financially by Nicholas Muss, a Huguenot, who welcomes him to his party of drinkers. Muss explains that the marriage of the Protestant Prince Henri of Navarre, to the Catholic Princess Marguerite de Valois, the sister of the King, is the cause of the heightened tension in Paris. While Steven, Gaston and Nicholas are wandering home, they find a frightened serving girl, Anne Chaplet, who is terrified of being pressed into the service of the Catholic Abbot of Amboise. Anne is also scared because she has heard some guards in the pay of the Cardinal mention how a religious massacre of Huguenots back in her home town of Wassy a decade earlier could now be replicated in Paris. To protect her and her knowledge, Nicholas arranges for Anne to go into the service of his master, Admiral Gaspard de Coligny, the most senior Protestant adviser at the Royal Court. Steven also stays with the Admiral to avoid the curfew in the city, as the Doctor has not returned to the tavern as arranged.

The next day, the Abbot of Amboise has arrived at his Parisian residence. He bears the exact likeness and voice of the Doctor. He is a religious zealot who acts as enforcer to the ever-absent Cardinal of Lorraine. The Abbot is about to journey to Paris to conduct a witch-hunt against all heresy, including the apothecaries and the Huguenots. He sends his secretary, Roger Colbert, out to track down the missing Anne Chaplet, convinced she has worked out the threat to the Protestants. Colbert makes for de Coligny’s house and tries to convince Nicholas, Gaston, and Steven that Anne has been over-creative in her interpretation of what she heard. A little later, Steven spies Colbert talking to the Abbot about the situation, and is stunned that the cleric seems to be the Doctor. When Steven and Nicholas track down Preslin’s shop to try and find the Doctor, they discover it has been closed since Preslin was arrested for heresy two years before. This news makes Nicholas suspicious that Steven is a spy in the employ of the Doctor/Abbot.

In the Council of France a power struggle is in place between the impassioned, Catholic Tavannes, Marshal of France, and the more cautious Admiral de Coligny, who is trying to persuade the Court to back the Dutch in their war against Spain.

Steven has now fallen out with and evaded Nicholas Muss, taking his chances in the streets of Paris alone. He heads for the Abbot’s house, believing him to be the Doctor, and hides there while Tavannes, Duval and Colbert meet to discuss their plans. The "Sea Beggar dies tomorrow" assures Tavannes, as an assassin has been engaged to kill him when he departs the Royal Council in the Louvre. The Sea Beggar is a codename for de Coligny, but the conspirators do not reveal this. With night falling again, Steven heads out again and finds Anne following him. She has been dismissed from service for protesting Steven’s innocence in the Catholic plot. They hide the night at Preslin’s empty shop then determine to try and find the identity of the Sea Beggar.

When the Council resumes at the Louvre the next morning, Tavannes and de Coligny are still locked in conflict. They also argue about domestic matters, with de Coligny urging more action to protect the Huguenots.

Steven and Anne call upon the Abbot, where he learns both that the Doctor is not the Abbot and the identity of the Sea Beggar. The pair flee before Anne can be confined, alerting the Abbot, Tavannes and Colbert of their danger since they evidently know too much. Steven and Anne make contact with Nicholas Muss and warn him the assassination of his master is about to take place. Nicholas bolts off and witnesses the assassination attempt, but de Coligny is merely wounded.

Tavannes believes the bungled assassination is the fault of the Abbot, who has become a liability, and the cleric is placed under arrest, suspected of being an impostor.

De Coligny has meanwhile been moved to his house, and a surgeon called, and as Steven and Nicholas tend to him they too receive news that the Abbot of Amboise has died. Steven is distraught, still partly convinced that the Doctor has adopted the Abbot’s guise, heads to the Abbot’s lodgings and sees the dead body there. It seems the Abbot has been assassinated too, inflaming the Catholic mob outside the house, which does not disappoint the real culprits, Colbert and Tavannes.

On the following day, Steven heads back to Preslin’s shop and is reunited with Anne. A little later the Doctor himself arrives, and is very insistent that he and Steven must depart the city as soon as possible. Anne is sent to her aunt’s house, with a warning from the Doctor that she must stay there. She heads off while Steven and the Doctor head across the city.

The Queen Mother has now persuaded the King that the Huguenots are a threat to his reign, and has signed an edict authorising a Huguenot massacre over the next twenty-four hours. Simon Duval and Colbert greet the coming massacre with more glee and bloodlust than that displayed by Tavannes, who fears the Queen Mother has gone too far.

The Doctor and Steven make it to the TARDIS just as the curfew is falling and depart as the massacre begins. Steven is worried for Anne and his friends, and angry that the Doctor made him leave. The Doctor insists that history could not be changed. De Coligny and Nicholas Muss will be amongst the dead, and possibly Anne too. Steven cannot accept that the Doctor had to leave Anne behind, and is so disgusted with his colleague that he determines to leave his company. When the TARDIS lands Steven offers a terse goodbye and ventures out into a woodland area. The Doctor is left totally alone for the first time, and reflects on the other companions that have travelled with him and then left him, and his inability to return home.

The TARDIS has arrived in 1966 and a young girl enters the vehicle thinking it to be a Police Box on Wimbledon Common. A small child has been hurt in a road accident and she wishes to make a call. Steven arrives back too, saying that policemen are approaching, and his heart softens when the young woman introduces herself as Dorothea or Dodo Chaplet.

The Doctor, hearing Steven's warning of the approaching policemen, hurriedly dematerialises the TARDIS, not noticing until after it has left 1966 that Dodo is still aboard. Steven informs her that there's no way back, and "we could land anywhere," but Dodo seems either unworried or simply doesn't believe him. She says she is an orphan who lives with her great aunt and thus has few ties, as the TARDIS continues to hum, hurtling them toward the next great adventure.

- The Ark (4 Episodes)

Almost ten million years in the future, the TARDIS materialises on a vast spacecraft including its own miniature zoo and arboretum. The First Doctor and Steven Taylor are still explaining the basics of their time travel ability to new companion Dodo Chaplet when she starts to show signs of a cold. It is only a matter of time before they are found and taken to the control chamber of the vessel. Their captors are the mute Monoids, seemingly identical alien beings with a single eye. The Monoids live in peace alongside the humans who command the spaceship, their own planet having been destroyed, but often do much of the menial work. The humans in charge of the ship explain that the Earth is about to be destroyed because of the expansion of the sun, and that this ship is an Ark sent into space with the last remnants of humanity, civilization and various forms of flora and fauna. The human Guardians in charge of the craft run a tight ship: failure to conform to rules means either death or miniaturisation until they reach their destination, an Earth-like planet called Refusis II, which takes nearly 700 years to get to. As an amusement during the journey a vast statue is being carved by hand, depicting a human being.

Dodo's cold has now spread amongst the Monoid and human populations, but regrettably, they have little natural immunity. When the Commander of the Ark collapses with the malady, the whole ship is placed on alert as Zentos, the Deputy Commander is suspicious of the travellers and believes they have deliberately infected the ship. When the first Monoid dies, there is little the Doctor can say to pacify the angry Guardians. Zentos places the Doctor, Steven and Dodo on trial for their crimes, with a young Guardian called Manyak and the Commander's daughter Mellium as defence. Steven acts as the first defence witness, attacking the closed nature of the minds of the Guardians, but exhausts himself in the process and collapses with the fever. His words have no impact on Zentos, who orders their execution, but the ailing Commander intervenes to protect the three travellers and permit them access to medical equipment to devise a cure to the cold. The Doctor is thus able to recreate the cold vaccine from the membranes of animals on the craft, and this is administered throughout the crew. The Commander, Steven and the others infected are soon on the road to recovery. Their work done, the trio have only time to observe the end of Earth on the long-range scanner before the Doctor leads them back to the TARDIS.

Curiously, when the TARDIS rematerialises, they are still on the Ark. However, seven hundred years have passed and there has been a major change: the Monoids are in control. They have completed the statue in the image of themselves, having staged a coup during the long journey. This was made possible by a genetic weakness introduced into the humans, but not the Monoids, by a second wave of the cold virus 700 years earlier. The Monoids also now have voice communicators and use numerical emblems to distinguish each other. The humans are now little more than slaves, with the odd exception like the collaborator subject Guardian Maharis, and have little hope of change. The Doctor and his friends encounter the Monoid leadership, installed in a throne room on the Ark, after which they are sent to the security kitchen to help prepare meals for the Monoids. Two humans, Manissa and Dassuk, believe the moment of their liberation is at hand. Steven tries to help them in a revolt, which is unsuccessful.

The arrival on Refusis is close at hand and a landing pod is prepared. Monoid 1 wants to make sure that the new world is inhabited only by Monoids, despite promises that the human population will be allowed to live there too. A landing party is assembled – the Doctor, Dodo, Monoid 2 and a subject Guardian named Yendom – and they soon reach Refusis II and start to investigate. A stately castle, which seems to be unoccupied, is in fact the home to the invisible Refusians, giant beings rendered invisible by solar flares. They welcome their guests and have been expecting them but only want to share the planet with other peaceful beings. Monoid 2 and Yendom flee the castle, and en route Yendom realises the humans will not be allowed to reach Refusis with the Monoids. Monoid 2 kills him and is shortly afterward killed himself when the landing pod explodes.

The tension of the situation foments dissent in the Monoid ranks, with Monoid 4 openly opposing Monoid 1's plans to abandon the humans and colonise Refusis without more checks on the planet. Three launchers are sent to the planet, Monoids 1 and 4 commanding them, and when the crews emerge Monoid 4 interprets the destroyed landing pod as evidence of the danger that Monoid 1 has led them to. A civil war erupts between the two Monoid factions. The Doctor, Dodo and a Refusian use the confusion to steal one of the launchers and pilot back to the Ark.

The Monoids have placed a bomb on board the ship and plan to evacuate soon to the planet surface, leaving the humans to die on the spaceship. Word of this threat spreads and spurs a human rebellion. The arrival of the Doctor and the Refusian spur things along, and they soon realise the bomb has been placed in the head of the statue. Thankfully the Refusian is able to help dispose of the statue into space before the bomb explodes. The humans now begin to land on Refusis themselves, having been offered support on peaceful terms by the Refusians. Many of the Monoids have been killed in their civil war and those that remain are offered peaceful settlement alongside the other two species.

Once more the TARDIS departs, and this time the curiosity is that the Doctor simply vanishes from the TARDIS control room…

- The Celestial Toymaker (4 Episodes)

An alien intelligence has invaded the TARDIS and rendered the First Doctor invisible, leaving Dodo Chaplet and Steven Taylor incredulous. They step outside into a strange realm where the Doctor reappears, saying he recognises the place they are in. They have come to the realm of the Celestial Toymaker, an eternal being of infinite power who sets games and traps for the unwary so that they become his toys and playthings. The TARDIS is removed to prevent their escape and hidden with hundreds of facsimiles to prevent detection. The Doctor and the Toymaker have faced each other before, and the Toymaker abducts his old adversary to another place. The Doctor appears in the Toymaker’s study where he is given the Trilogic game, a ten piece Tower of Hanoi puzzle whose pieces must all be moved and remounted in a precisely correct 1023-move sequence to ensure success at the game. Screens are placed in the two rooms which transmit the progress of the Doctor to his friends and vice versa. When the Doctor tries to communicate with his friends he is rendered invisible, unable to offer any advice or support. The game is advanced automatically to a further stage, with the Toymaker warning the Doctor that both parties must finish their tasks at the same time to win the game. A similar transgression later leads to him being made mute.

Steven and Dodo face different challenges. The first to appear are two clowns, Joey and Clara, full of childish tricks and a rather dangerous game of Blind Man's Bluff based on buzzed clues, which is not as simple as it first seems. The clowns are made to replay the game when it is clear they are cheating, and the second time round Joey loses his footing on an obstacle course and the challengers are transformed into twisted dolls on the floor. Steven and Dodo then venture down a corridor into another chamber with three beautiful chairs and a challenge from living playing cards, the King and Queen of Hearts, along with a Knave and a Joker. An adjoining room has a further four chairs and Steven deduces from a rhyme that six of the seven chairs are deadly to sit on. Seven mannequins are provided to be used for testing on the chairs. The King and Queen play alongside them, and some of the mannequins are destroyed as seats are proven unsafe and eliminated. Dodo herself sits in the freezing chair and starts to freeze, only being rescued in the nick of time. The King and Queen, however, perish when they sit in a chair, with Cyril, the Knave, and the Joker having abandoned them to their games.

The next hurdle for Steven and Dodo are the comical Sgt. Rugg and Mrs. Wiggs, who hold court in a kitchen. They challenge them to hunt the thimble – or rather the key to the exit door – beyond which the TARDIS is presumed to be. Rugg and Wiggs are soon fighting, hurling crockery and food around, and in the chaos Dodo finds the key inside the large pie which Mrs Wiggs was making. She and Steven depart and enter another room with the dancing floor. There they encounter the three mannequins not destroyed by the chairs, who transform into ballerinas, and start to dance. At the far end of the floor is indeed the TARDIS. Sgt Rugg and Mrs Wiggs turn up too, determined to please the Toymaker and stop Steven and Dodo from reaching their craft. Steven and Dodo get trapped as partners with two of the dolls, and only manage to free themselves by swapping their partners for each other. They pelt on to the TARDIS, leaving Wiggs and Rugg to their fates, but the Police Box is once more a fake.

With the Doctor making good progress with the Trilogic Game, the Toymaker now chooses Cyril the schoolboy to take on his companions. Dodo and Steven now find themselves in a vast game of hopscotch against the schoolboy, who delights in tricks and traps to prevent them winning. The TARDIS is the alluring prize at the end of the game, and to reach it you need to win dice throws, relying on luck, and avoid the electrified spaces beyond the proper squares. It is, however, Cyril who literally falls foul of his own traps when he slips on a square he has made booby-trapped and is electrocuted. Dodo and Steven thus are at the TARDIS.

In the Toymaker’s study at the same time, the Doctor is at the final stage of the Trilogic Game. He has been returned to visibility and voice, and holds the final piece of the puzzle in his hand. The three friends are now reunited, with Steven and Dodo sent into the TARDIS for safety while the Toymaker challenges the Doctor to complete the Game. The Doctor realises that when he makes the move and the Game is won, the Toymaker’s domain will disappear – and the TARDIS with it. He cleverly orders the last piece to move using the Toymaker’s voice from inside the TARDIS, allowing them to depart while the Toymaker’s world is destroyed. The Doctor celebrates with a sweet from a bag given to Dodo by Cyril, but it leaves him in agony...

- The Gunfighters (4 Episodes)

In the frontier town of Tombstone, Arizona, the troublesome Clanton brothers, Ike, Phineas and Billy, are in town in search of Doc Holliday to settle an old score over the death of another brother called Reuben. They meet up with their hired hand Seth Harper at the Last Chance Saloon. He knows what Holliday looks like and describes his coat and demeanour. This is overheard by bar singer Kate, who lets her paramour Holliday know he is in danger.

The TARDIS has arrived in a nearby stable, with the Doctor in agony from toothache. He and his companions Steven Taylor and Dodo Chaplet, dressed as cowboys, soon encounter local marshal Wyatt Earp, who offers them his protection and warns them to keep his counsel. The Doctor finds the dentist – Holliday himself - while Dodo and Steven book rooms at the local hotel. There they are mocked by the Clantons, who suspect the Doctor they refer to is Holliday himself. Seth Harper is sent to the dentist’s surgery and invites the Doctor, tooth removed, to the hotel in five minutes to meet his friends. Holliday is initially happy to let him be shot in his place, allowing the real Doc to disappear, but Kate intervenes to ensure the Doctor survives. This buys some time until Holliday relents and hides in an upstairs chamber of the hotel, firing his gun at appropriate moments to con the Clantons into thinking the Doctor is indeed Holliday the sharpshooter. Soon afterward Wyatt Earp and Sheriff Bat Masterson arrive and break up the fracas, taking the Doctor into custody for his own protection. Steven now becomes embroiled in a plot to smuggle the Doctor a gun to help free him from the jailhouse, but the Doctor refuses to be armed. Steven is shortly afterward confronted by a rabble wound up by the Clantons, who are intent on lynching him as an associate of the disreputable Holliday. Once more it is Earp and Masterson who defuse the situation, and also take Phin Clanton into custody to ensure the co-operation of his brothers. The Doctor and Steven are freed and told to leave town as soon as possible.

Dodo has meanwhile fallen in with Kate and Doc, who both plan to leave town and take her with them. When Seth Harper stumbles across their escape plans, Holliday kills him, and the trio then depart. Harper's role as aide to the Clantons is soon replaced by a new arrival, Johnny Ringo, who shoots local barman Charlie by way of an introduction to the town of Tombstone. The Doctor and Steven return to the Last Chance Saloon in search of Dodo and encounter the dangerous Ringo.

Wyatt Earp’s brothers Warren and Virgil have meanwhile arrived at Tombstone to help him enforce the law. The Doctor soon tells them that Ringo is in town. Events take a harsh turn when the other Clanton brothers visit the jail to free Phin, killing Warren Earp in the process.

Meanwhile, Steven heads out of town to look for Dodo with Ringo in tow in search of Holliday. Steven and Kate end up being taken by Ringo to the Clanton ranch where the Clantons recamp and tell their father, Pa Clanton, that they have killed an Earp. Wyatt Earp swears vengeance and starts to build a posse of lawmen to deal with the Clantons once and for all. Doc Holliday returns to Tombstone with Dodo, and offers his services to his old friend Earp too. Attempts by the Doctor to defuse the situation amount to little: there will be a gunfight at the O.K. Corral. On the one side are the three Clanton brothers and Johnny Ringo; on the other, the two Earps and Doc Holliday. At the end of the gunfight Ringo and the three Clantons are shot dead. Shortly thereafter, the Doctor, Steven and Dodo slip away in the TARDIS.

They arrive on a strange planet, and decide to go out and have a look. As they leave, a strange man is seen approaching the TARDIS on the scanner.

- The Savages (4 Episodes)

The TARDIS materialises on a distant planet in the far future. The Doctor, Steven and Dodo find the planet inhabited by both an advanced, idyllic civilisation (the Elders), and bands of roaming savages. The Elders welcome the Doctor, greeting him as "The Traveller from Beyond Time" and revealing they have admired his exploits from afar and predicted that he would soon be arriving here. Their leader Jano showers the Doctor and his companions with compliments and gifts, reinforcing the idyllic nature of the society of the Elders. However, the Doctor becomes suspicious of the Elders' seemingly perfect civilisation, but it is Dodo who finds the secret. The soldiers Exorse and Edal are sent outside the Elder city and use advanced weapons to capture the savages, entrapping them and returning them to the city. The Elders are only able to maintain the energy needed to run their civilisation by draining the life force of the helpless savages. The Doctor, appalled, tries to stop the Elders and persuade them of the wrong they are doing by building a civilisation on such immoral grounds.

Jano’s response is to have the Doctor himself subjected to the energy transfer process. The Doctor is put into the transfer device and his life force is channelled into the Elder Jano, who desires his intelligence. Yet the plan backfires when the Doctor's personality takes over Jano, imbuing him with the Doctor’s mannerisms, outlook and morality. The two identities cause Jano a personality crisis. Dodo and Steven have meanwhile ventured outside the city and made contact with the savage leaders Chal and Tor, who are respectively pleased and antagonised by their presence. The savages are the remnants of a once highly skilled and artistic race, but over the centuries the energy transfer process has stymied their creativity and ability. Chal hides the two fugitives in a deep cave system, pursued by the guard Exorse, whom Steven overpowers. They return to the city and find a weak but determined Doctor, and help him escape the city.

The time travellers now help the Savages fight back against the Elder guards. The Doctor realises that the Elders must be forced, not persuaded, to change their ways as their whole civilisation must change overnight. His mixed personality convinces Jano to help the Savages and he tries to convince the other Elders to treat the Savages as equals, while Exorse too has realised the error of his ways. Jano and Exorse begin the destruction of the technology underpinning the society and are soon joined in the destruction by the Doctor, Steven and Dodo. The end of the technology means the end of the oppression, and Jano and Chal begin to talk of how a new society can be built together. The Doctor surprises Steven by convincing him to remain behind as a mediator. When both sides agree to accept Steven's decision, he decides to stay. The Doctor and a saddened Dodo bid their friend goodbye.

- The War Machines (4 Episodes)

The TARDIS lands in London, near the Post Office Tower. The Doctor is unsettled by a sensation of a strange energy nearby. Visiting the newly completed Tower, the Doctor and Dodo meet Professor Brett, the creator of WOTAN (Will Operating Thought ANalogue), an advanced problem-solving computer that thinks for itself. Curiously, WOTAN even knows what the word 'TARDIS' stands for. In four days time, on C-Day, WOTAN will be linked to other major computers to take them over, including those of the White House, Cape Kennedy and the Royal Navy.

Dodo goes with Polly, Brett's secretary, to the local Inferno nightclub, where they meet Able Seaman Ben Jackson, while the Doctor attends a Royal Scientific Club meeting about WOTAN, led by Sir Charles Summer. Before Brett can depart the GPO Tower for the meeting, he is hypnotised by a humming noise emitted by WOTAN. He then fetches Krimpton, an electronics colleague, from the meeting and takes him to WOTAN, who is likewise possessed by the computer. Major Green, the chief of security in the Tower, is also taken over, and sends WOTAN's control signals to Dodo at the nightclub via telephone. Going to the tower, WOTAN tells her "Doctor Who is required. Bring him here."

WOTAN has concluded that mankind cannot develop the world any further, and intends to take over using an army of War Machines - mobile computers like itself. Using its hypnotic control, WOTAN enlists a workforce to construct 12 War Machines around London, which is the first capital to become controlled. One of these machines is built in a warehouse in Covent Garden, close to the Inferno nightclub. Dodo, the Doctor, Ben and Polly leave for Sir Charles' residence, where the Doctor has been invited to stay, in a taxi that drops off a tramp by the nightclub. Looking for a place to sleep, the tramp discovers Brett and a workforce building Machine 3 in the warehouse. The tramp is caught, and killed when he tries to escape.

The next day, Dodo manages to get the Doctor to telephone Brett at the GPO Tower, and he is nearly possessed by WOTAN. Thinking the Doctor is now controlled, Dodo gives herself away by revealing that the War Machines are being "constructed in strategic points in London". The Doctor breaks WOTAN's hypnotic control over her, and she is sent to stay with Sir Charles' wife in the country to recover.

When Polly fails to show up to a luncheon with Ben, the Doctor sends the lad to investigate the area around the nightclub, after reading about the death of the tramp in the newspaper. Ben also discovers the War Machine in the warehouse, now fully assembled and being tested under Major Green's supervision. Ben is detected by the Machine, and caught by the now hypnotised Polly. However, Ben is spared when Polly states that "WOTAN requires all the slave labour we can find". While working with the others, Ben learns that the 12 War Machines are to attack at noon the next day. He escapes, although seen yet not stopped by Polly, and alerts the Doctor and Sir Charles. Polly is sent back to the Tower to be punished by WOTAN.

Under Sir Charles' instruction, an army taskforce investigates the warehouse, but their weapons are somehow disabled by the War Machine. They are forced to retreat, but when Doctor stands defiantly before the Machine as it emerges from the warehouse, it stops - it had not been completely programmed. With the deactivation of Machine 3, the workmen, including Major Green, are released from its control. Examining the Machine's programming, the Doctor learns that the 11 others have been built across London, and are meant to attack at noon today. Soon after, there are reports of another War Machine - Machine 9 - taking to the streets, having gone rogue while it was being tested. With the help of the army, the Doctor traps the Machine in an electromagnetic forcefield - paralysing it - and reprogrammes it to destroy WOTAN. Ben goes to the GPO Tower ahead of Machine 9, and drags Polly out of the WOTAN room as the Machine enters and attacks the immobile computer. Krimpton is killed, but WOTAN is destroyed before it can give the order for the other 10 War Machines to commence their attack - and Brett and all the others who have been hypnotised return to normal.

Ben and Polly meet the Doctor at the TARDIS, to explain that Dodo has decided to stay in London. The Doctor thanks them and heads into the police box - followed by Ben and Polly, who enter the TARDIS with the intent to return Dodo's key, which the Doctor dropped earlier. They are then suddenly whisked off into time and space...

  • Season 4 (1966 - 1967)

- The Smugglers (4 Episodes)

The Doctor's new companions Ben and Polly arrive with him in the TARDIS on the coast of seventeenth century Cornwall. They meet a worried churchwarden named Joseph Longfoot, who lives in fear of "Avery's boys" and, in thanks for the Doctor's kindness in relocating a dislocated finger, imparts a cryptic message he calls "Deadman's secret key": "Smallbeer, Ringwood, Gurney".[notes 1] While the time travellers head off to settle at the local inn, Longfoot has another visitor. This one is Cherub, Longfoot's former shipmate under pirate Captain Avery on the Black Albatross. Cherub and his master, Samuel Pike, who captains the Albatross since Avery died, want to recover Avery's accursed gold. Pike is convinced that Longfoot has the treasure or knows where it is hidden. When the churchwarden does not co-operate, Cherub kills him – but not before revealing he saw the three travellers who visited Longfoot earlier.

Hours later the discovery of the churchwarden's body leads the locals to suspect the three strangers at the inn. The local Squire is called to intervene and adjudicate, and ends up charging Ben and Polly with the murder. Employing trickery to obtain their freedom, they split up. Ben hides at the church until Josiah Blake, a revenue man tracking the local smugglers, disturbs him.

In the meantime Cherub and some pirates have kidnapped the Doctor and taken him to the Albatross. The Doctor attempts to bargain with Pike, and finds himself kept aboard ship while the captain goes ashore. Pike decides to try and make an alliance with the Squire as well to protect himself while he searches for Avery's treasure. The greedy Squire is the organiser of the local smuggling ring and offers to cut Pike and his pirates in. They are interrupted by Polly, who has come to implore the Squire to help her find the Doctor and is shocked to see him in the company of the kidnapping pirate Cherub.

Pike, Cherub and the Squire bind and gag Polly and take her to the church, meeting and capturing Ben on the way. They attempt to convince Blake that Ben and Polly are the true smugglers. Knowing the truth but lacking the manpower to arrest the pirates, Blake pretends to arrest Ben and Polly. The Doctor has meanwhile escaped from the ship and meets up with his friends in the churchyard. Blake works out a smuggling drop is due soon and heads off for more revenue men to break the smuggling ring.

The smuggling alliance has by now fallen apart: the Squire has realised he is dealing with a ruthless pirate who will not honour any bargains with him while Cherub has decided to locate Avery's gold for himself. The Squire too sets off to find the gold, as do the time travellers since the Doctor is convinced the rhyme of the churchwarden is the key. He works out the names Ringwood, Smallbeer, and Gurney pertain to graves in the crypt but before he can find the treasure the other seekers arrive. Cherub wounds the Squire, and then forces the Doctor to confess the rhyme. Cherub concludes that Deadman too is a name of one of Avery's former pirates, but is slain by a vengeful Pike, who now threatens to pillage the entire village in his search for Avery's treasure. The Doctor bargains with Pike for the lives of the villagers if he shows him the treasure and, with this agreed, they find the gold at the intersection of the four graves.

No sooner does Pike have the treasure than Blake and an armed patrol of revenue men arrive. Aided by the injured Squire – who repents of his sins – Blake kills Pike, and the pirate force is routed. As the battle dies down, the Doctor and his companions slip away to the TARDIS, and the Doctor says superstition is a strange thing but it sometimes tells the truth.

- The Tenth Planet (4 Episodes)

The Doctor and his companions Ben and Polly arrive in the TARDIS at the South Pole in the year 1986, near the Snowcap base. The base is supervising the mission of the Zeus IV spaceship, running a routine probe on the Earth's atmosphere.

Unusual readings on the spaceship's instruments lead to the discovery of a new planet suddenly approaching Earth. The spaceship begins to experience power losses, and Snowcap personnel begin arrangements to abort its mission.

Back on the base, the Doctor reveals what he knows about the tenth planet: it is Mondas, Earth's former sister planet and its inhabitants will soon be visiting Earth. True to his prediction, three robotic creatures land outside, killing the guards and disguising themselves in the dead men's furs to gain access.

While everyone is distracted by their efforts to land Zeus IV safely, the creatures are easily able to take over the base. The base personnel and Polly plead with the invaders to allow them to save the lives of the Zeus IV crew, but the creatures say that their lives are irrelevant to them. They explain that they are Cybermen, who were once like human beings, but gradually replaced their bodies with mechanical parts, including eliminating the "weakness" of emotion from their brains. The Cybermen allow the men to make contact with Zeus IV, but it is too late as the ship is dragged away by Mondas and explodes.

The Cybermen explain that Mondas is absorbing energy from Earth and will soon destroy it. They propose to take humans back to Mondas and turn them into Cybermen.

Ben, who has been imprisoned in the projection room after attempting to kill a Cyberman, rigs up the projector to blind incoming Cybermen, allowing him to steal his guard's weapon and kill him. Sneaking back into the Tracking Room, he hands the cyberweapon to General Cutler, the base commander, who kills the remaining two Cybermen. Cutler contacts Space Command HQ in Geneva and is informed that they have sent his son on a mission to rescue the doomed Zeus IV.

Cutler decides it is time to take the fight to the Cybermen and decides to use the powerful Z-bomb to destroy Mondas. Ben argues against using the bomb, saying that Mondas might destroy itself anyway when it absorbs too much energy. The chief scientist at Snowcap, Dr. Barclay, is also concerned, saying that the radiation caused by the exploding planet would cause great loss of life on Earth. Unswayed, Cutler orders Ben to be imprisoned in a cabin with the Doctor, who is unconscious and seemingly ill.

Barclay goes to Ben and tells him how to sabotage the rocket to prevent it from reaching Mondas, but Cutler notices Barclay's absence and catches Ben in the act. Cutler attempts to fire the Z-bomb, but the engines fail on the launchpad thanks to Ben's sabotage. Cutler, enraged, threatens to kill Ben, Barclay, and the Doctor, who has now regained consciousness. Before he can shoot the Doctor, Cutler is killed by the leader of a newly arrived squad of Cybermen.

The Cybermen insist that the rocket pointed at Mondas be dismantled. The Doctor suggests that it would be a good idea to go along with this, and tells the others to play for time, as Mondas cannot take much more energy now. The Cybermen take Polly back to their spaceship as a hostage.

As the Cybermen take over Space Command in Geneva, the Doctor realises that their plan is to destroy the Earth with the Z-bombs, thus saving Mondas. He manages to communicate this revelation to Ben and the others over the intercom before the Cybermen take him prisoner. In the radiation room, Ben surmises that the reason why they need to use humans to do this work rather than doing it themselves is that they are highly susceptible to radiation. Barclay suggests using the rods from the reactor chamber as a portable weapon against the Cybermen. This proves successful, allowing Ben, Barclay, and the others to regain control of the base. More Cybermen enter the Tracking Room, but just at that moment Mondas explodes, disabling all the remaining Cybermen.

Cutler's son contacts the base from Zeus IV, telling them that his ship is now back to full power and Geneva tells Barclay that the Cyberman threat has ended. Meanwhile, Ben makes his way back to the Cybermen's ship to rescue the Doctor and Polly. The Doctor seems to deliberate as to whether "it's all over" before settling that it's "far from over" before making his way back to the TARDIS. As Ben and Polly hammer on the door, the controls operate of their own accord and the central column begins to rise and fall. The Doctor seizes enough energy to open the door and Ben and Polly finally get in. Barely conscious, the Doctor collapses to the floor, and before the astonished eyes of his companions, he becomes enveloped in a bright light. After the light dies down, the Doctor`s face is different and has the appearance of a younger man.

To Be Continued in "The Patrick Troughton Era"...

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