Collects Captain America (1968) #333; U.S.Agent (1993) #1-4; U.S.Agent (2001) #1-3; material from Captain America (1968) #358-362, 380-382; Avengers West Coast (1989) #100. An all-American hero with an attitude! First he was the heroic Super-Patriot, and then he was Steve Rogersโ replacement as Captain America โ but John Walkerโs true destiny lay in the red, white and black garb of the U.S.Agent, and these are some of his edgiest adventures! First, see how Walker comes to wield Capโs 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 handpicked by the Commission to take charge of the countryโs superhuman incarceration, itโs his chance to finally get out of Captain Americaโs shadow โ unless a deadly conspiracy, a woman from his past and his own bullheadedness mess it all up!