First he was the heroic Super-Patriot... then he was Steve Rogers' replacement as Captain America... but John Walker's true heroic destiny lay in the red, white and black garb of the U.S.Agent! Walker is an all-American hero with an attitude problem - and these are some of his edgiest adventures! First, see how Walker comes to wield Cap's shield! Then, U.S.Agent hunts the murderous Scourge of the Underworld - and seeks answers about mixed-up memories that throw his past into doubt! When U.S.Agent is hand-picked by the Commission to take charge of the country's superhuman incarceration, it's his chance to finally get out of Captain America's shadow - unless a deadly conspiracy, a woman from his past and his own bull-headedness mess it all up! Collecting: Captain America (1968) 333; U.S.Agent (2001) 1-3; material from Captain America (1968) 358-362, 380-382; Avengers West Coast (1989) 100