After the cataclysmic events from New York with The Avengers, Steve Rogers, aka Captain America is living quietly in Washington, D.C. and trying to adjust to the world. However, if a S.H.I.E.L.D. colleague comes under attack, Steve becomes embroiled in a web of intrigue that threatens to put the world at risk. Joining forces with the Black Widow, Captain America fights to expose that the ever-widening conspiracy whilst fighting off professional assassins delivered to silence him. After the complete range of this plot is shown, Captain America and the Black Widow enlist the aid of a brand new ally, the Falcon. But they soon find themselves facing an enemy--that the Winter Soldier.