As we all know, the next installment in the Captain America movies is going to be "Civil War", but is it what we think it will be? The "Civil War' story is one of the most famous stories in Marvel history. The plot of the series follows a storyline in which the U.S.. government passes a Superhero Registration Act designed to have superpowered characters act under regulation. Those who were opposed to the act, led by Captain America, find themselves in conflict with those who support the act, led by Iron Man, and our friendly neighborhood Spider-Man finds himself caught in the middle. But I don't believe that is the direction the movie will go for one reason. That reason being the terms of the Superhero Registration Act. The terms required that all superpowered persons to reveal their identities to the government. Given how there are few (if any) heroes that have secret identities, I doubt this will be the story that the "[Captain America: Civil War](movie:994409)" movie will tell. Instead I think the movie will go down a route that involves one Bucky Barnes, AKA The Winter Soldier.
How does it involve Bucky you ask? Well it's simple. Now Barnes is back, S.H.I.E.L.D will undoubtedly see him as a threat as he is a highly trained brainwashed cyborg maniac, and will want to him taken out. But as we saw in "[Captain America: The Winter Soldier](movie:254973)", Cap won't do a thing to hurt him due to his belief that Bucky's brainwashing can be reversed. So when S.H.I.E.L.D. wants Bucky dead, Cap will be furious and will do all he can to protect him. Iron Man on the other hand wouldn't have a problem doing as S.H.I.E.L.D. asks, and then the conflict of "Civil War" is born. Captain America and those who side with him will then face off against Iron Man and those who side with him. (And if Spider-Man joins the MCU in time to see this go down, which I doubt he will, he'll find himself in the middle of the superpowered crossfire.)