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!