Agents of S.H.I.E.L.D. has become a good way of introducing characters to the Marvel Cinematic Universe. I am pitching to you (I don't know why you, specifically, maybe ABC and Joss Whedon will somehow see this) a way Marvel could just insert an already established character, who has been returned to his home in Marvel, and is rumored to already be in the MCU. This would be going by the continuity of ONE, my particular favorite, of this character's previous incarnations. And now, we begin with my title proposition for the episode.
Coulson is briefing the team on rumors and sightings of random killings of HYDRA agents and criminals. He says he has learned who the perpetrator is, a former policeman and war veteran from Florida, named Frank Castle, but many refer to him as "The Punisher". He provides the team with Castle's history, with how he single-handedly slaughtered the mob boss Howard Saint's (Yes, THAT movie) crime family, in retaliation for the death of his family, and continued killing criminals.
The team are sent to capture Castle, so Coulson can convince him to handle the criminals less violently, and possibly recruit him. The team finds Castle, (played by Thomas Jane) but are forced to retreat. Castle, mistaking them for HYDRA agents, opens fire on them, and they flee into a warehouse. He goes in after them, and prepares to sneak up on Skye, but is knocked out by Agent May. He wakes up in Coulson's office, tied to a chair. He and Coulson talk, and Coulson offers him a spot in S.H.I.E.L.D, but Castle kindly refuses, and also informs Coulson that he doesn't intend to stop with the criminals. Coulson then says that he will be forced to arrest him, and leaves the room to get two other agents, but when he returns, Castle is gone, and Coulson smiles.
Discuss and give feedback in the comments. Thank you.