Captain America: The Winter Soldier is a 2014 superhero film based on the Marvel Comics character Captain America. It follows Steve Rogers as he struggles to embrace his role in the modern world and teams up with Black Widow and Falcon to uncover a conspiracy within S.H.I.E.L.D. The film explores themes of trust, loyalty, and the consequences of unchecked power, and features intense action sequences and a complex narrative, making it a standout entry in the Marvel Cinematic Universe.