Professor Xavier has been missing ever since the authorities arrested him in the wake of the Onslaught disaster. In addition, shortly after Bastion stripped the X-Men’s home of its technology, a sentient Cerebro appeared with its own team of artificial X-Men fighting both humans and the real X-Men. Having eliminated his failed X-Men Cerebro is now looking for Professor Charles Xavier. Two readings of his signature are detected around the globe, so the X-Men split into two groups to find out which is real, and which is fake. But extensions of Cerebro, named Cerebrites Beta and Alpha are sent to find Xavier too, to bring him back and help to bring about a cataclysmic plan that would prove to be a perversion of Xavier's dreams for a future where humans and mutants can live together in peace...