The X-Men failed in their mission, though, and now the Cosmic Cube is in the hands of their longtime enemy Magneto, the Master of Magnetism. Like his former friend Professor Xavier, Magneto has a dream for all mutant-kind -- but his is of a day when Homo Superior freely walk the Earth, not as equals to the human race, but as their masters.

Now that day has come, and the only hope the world has to survive the mutant overlord's reign is in the hands of Professor Xavier and the one X-Man not affected by the reality-changing powers of the Cube: Betsy Braddock -- the ninja-trained telekinetic known as Psylocke.

But unknown to any of the players in this cosmic chess match there is one final participant waiting in the wings, and he is about to make his first move....