Gambit, Storm, Jubilee and a host of other mutants are made to work as slaves in Genosha to complete a dam which will power a Sentinel factory. Special collars on mutants' necks prevent them from using their powers, but Gambit manages to escape. During his escape, Gambit finds Cable who is looking for the one responsible for enslaving the mutants, the Leader. Cable gives Gambit a key to unlock his collar before attacking the Sentinel factory. Gambit frees the other Mutants, who begin fighting with the guards and Sentinels before fleeing. Storm uses her powers to bring down the dam, causing a flood to destroy the entire factory. The X-Men return home to find the X-Mansion destroyed.