Avengers: EMH! Season 2, Ep. 21 - Clip 1
After the Red Skull's capture, Captain America learns the truth behind the Winter Soldier and must track his former partner down in order to stop the rest of HYDRA's Sleepers in this Sunday's all-new "The Avengers: Earth's Mightiest Heroes!" beginning at 11:30 a.m. ET inside Marvel Universe on Disney XD!