Dimension-hopping and intergalactic adventure are mutant rites of passage, and it's high time the All-New X-Men took the plunge! First they're off to a world like their own, but oddly different. Welcome to the Ultimate Universe, gang, hope you experience the survival! If they make it through their encounter with Miles Morales, the Ultimate Spider-Man -and their own counterparts -they'll get caught up in a cosmic caper over an object of great power. COLLECTING: ALL-NEW X-MEN #31-41.