While the X-Men are at a summer camp, learning survival training, Mystique releases Cain Marko - the unstoppable Juggernaut - in hopes of getting his help in obtaining Xavier's mutant location system.

Cylops leads the X-Men in a search for the missing Xavier and Wolverine.

The destroyed Institute is restored by the X-Men; Mystique escapes and sets a trap for Cyclops.

The Brotherhood cause mishaps so they can stop them and appear to be heroes.