A second printing of the sold-out milestone issue with a cover by Bachalo! The X-Men face meltdown from within and without, while Rogue, faces something far worse. Meanwhile a mysterious strike force is taking out the few remaining mutants one by one, with ruthless efficiency. But who is the ultimate target? This special double-sized anniversary issue features a plethora of mutant guest stars, the return of several fan-favorites and a devastating face-off against the deadliest villain team in the X-Men's forty-four year history! The issue also features the first Endangered Species back-up story.