Captain America: The Winter Soldier was conceived as a 1970s-style conspiracy thriller in tone, explained Marvel's Kevin Feige as he revealed a new piece of concept art featuring the lead villain. As evidenced in this second look at the character, Marvel and Disney aren't keeping their bad guy under wraps like a lot of other big franchises. Sebastian Stan is reprising his role as Bucky from the first film, who was last seen taking a plunge off an icy train. He returns as a brainwashed assassin bioengenered to take out Captain America. Take a look as The Winter Soldier catches Cap's iconic shield with one hand.

Captain America The Winter Soldier Concept Art

Kevin Feige explained more of the storyline to Entertainment Weekly.

"We weren't going back to World War II. Cap cannot travel in time. So while Tony can go home to Malibu and Thor goes up to Asgard and Hulk can sort of ride the rails, Cap was stuck.

So Cap does stay with S.H.I.E.L.D. because he has nowhere else to go. But he's not necessarily comfortable there. As you might imagine, somebody who's spent 70 years in ice, frozen, wakes up and has to fight a bunch of aliens with a bunch of weirdos-he is trying to figure out what his life is."

Kevin Feige explains that the film is a conspiracy thriller that has deep ties to Steve Rogers' past.

"Just as he's given permission to let go of the past and to focus on the modern world... a ghost comes up. I had my first meeting with Robert Redford, and he had read the script and he goes, 'You know I did a movie once called Three Days of Condor, and it really felt ...' And I was like [widens eyes ], 'Uh-huh ...

With the greatest generation in World War II, there's a tendency to reflect on that period and say. 'Things were black and white back then, and now it's hard to know who the bad guys are. We wanted to play on that a little with Cap being uncomfortable with the way S.H.I.E.L.D., and in particular Nick Fury, operates.

Fury certainly rides a line, sort of rides the shadows. He has, I think, lied to every character in every movie, though always for seemingly for the good."