Finally putting to rest their own recent past, the X-Men embark on an all-new, all-different era of excitement! The shocking return of an enemy thought dead rocks the X-Men to their very core! Can they overcome an adversary more powerful than they imagined, or will internal strife within the team itself tear them apart first? Plus: The Brotherhood of Mutants is back with Nocturne from the Exiles, and a surprise shocker of a member! With the Xavier Institute under attack by the Brotherhood and the X-Men down for the count, the only ally the students have to help keep these villains at bay is a blind Gambit. Collects X-MEN #157-164.