Captain America- The Winter Soldier Site

As Steve investigates further, he teams up with Natasha, Sam Wilson (Anthony Mackie), and Brock Rumlow (Frank Grillo) to uncover the truth. They learn that Alexander Pierce (Robert Redford), a high-ranking S.H.I.E.L.D. official, is working with HYDRA, a terrorist organization thought to be eradicated. The Winter Soldier, a brainwashed Bucky Barnes (Sebastian Stan), Steve's best friend from World War II, is revealed to be the assassin carrying out HYDRA's missions.