X-MEN VERSUS XENOMORPHS! They went looking for a Phoenix egg. They found something else. The X-MEN return to Earth with deadly cargo, and a violent battle between mutant and alien begins. And will an unexpected ally turn the tide in the X-Men's favor? In this special crossover decades in the making, the next evolution of Marvel's mightiest mutants begins! Will anyone survive the experience? Plus: The first chapter of an all-new story by the legendary Chris Claremont featuring Kitty Pryde, the Brood and the Xenomorphs! RATED PARENTAL ADVISORY.