As Magneto's Acolytes amp up their attacks on Homo sapiens everywhere, the X-teams join forces to put an end to the villainous zealots' mad crusade once and for all. But has their leader, messianic madman Magneto, returned from the dead? And as a mysterious and fatal disease begins creeping through the mutant community, which X-Man will lose a loved one - and buckle under the strain? Tensions come to a head in the most shocking way possible, culminating in a devastating attack on Wolverine -and a showdown between Professor X and Magneto that must be seen to be believed!