Issue: #3
The X-MEN and SENTINELS get along like a house on fire......until the X-Men meet a group of Sentinels asking for help.What could these old foes want? And where do they come from? And why are they calling themselves...mutants?
First appearances: Belen
Creators: Alan Fine, Axel Alonso, Dan Buckley, Joe Quesada, Mark Paniccia, Joe Caramagna, Nolan Woodard, Peter Steigerwald, Matt Milla, Jorge Molina, Jay Bowen, Christina Harrington, Anthony Gambino, Dan Mora, Cullen Bunn, Art Adams, Ray-Anthony Height
Characters: Magneto, Angel, Beast, Cyclops, Hope Summers, Iceman, Jean Grey, Belen, Bastion