Captain America (Chris Evans) tries to adapt to the new world, but when the SHIELD headquarters is under fierce attack, Steve finds himself embroiled in a battle of deception that may destroy the world. With the help of Black Widow (Scarlett Johansson) he plans to save what can be saved.
Two years after the events of The Avengers, Steve Rogers is living peacefully in Washington, D.C., struggling to adapt to modern society. However, Steve becomes entangled in a mystery that may endanger the globe. Together with Natasha Romanoff, Captain America attempts to uncover the growing machination while fending off hired hit men. When the entire scheme is discovered, Captain America and the Black Widow must recruit the aid of the Falcon and soon encounter an unanticipated and powerful adversary: the Winter Soldier.
Steve Rogers battles a new threat from old history: the Soviet agent known as the Winter Soldier.