SHOWDOWN! As an alien armada gathers above earth, a mysterious enemy emerges, Showdown! She and her ninja army seek to break THE FOUR out of their high security prison and unleash them on Youngblood. The away team unites with Prophet against the invasion of Lord Darkthornn's invading army, can they hold the inter-dimensional threat at bay? A new generation of super heroes explodes off the page fro the creator of X-Force, Deadpool and Cable, Rob Liefeld. Scripted by popular Superman/Batman writer and co-creator of Ben 10, Joe Casey!