Cap like you've never seen him before! First, it's Captain America's landmark 400th issue - and while Operation: Galactic Storm rages around him, Steve Rogers must face a gauntlet of his most formidable foes! But will the cosmic conflict's fallout sunder the Avengers? Then, prepare for one of the wildest stories the Sentinel of Liberty has ever seen, as Steve is transformed into a howling mad Cap-Wolf! Other werewolves including Man-Wolf, Werewolf by Night and the New Mutants' Wolfsbane join the fur-flying fun - as do Wolverine and Cable! But who will be the leader of the pack? Plus, when Diamondback is captured by Crossbones, it's Cap and Falcon to the rescue! But where's D-Man? And Steve Rogers joins Frank Castle in a brutal battle for blood and glory!