Captain America by Ed Brubaker, Volume 4

Collects Captain America (2011) #15-19. Still reeling from Hydra's Madbombs, Cap finds himself the target of a vicious media smear campaign. Who are the Discordians, and what will they blow up next? Targeted for death, Cap tackles Codename: Bravo and Queen Hydra with the fate of the world in the balance! Meanwhile, Sharon Carter and Dum Dum Dugan duke it out with Baron Zemo...in the depths of space!