A bunch of X-Men are located in a private airplane. Flying back from Asia to the United States. At that very moment the government and their new Operation Zero Tolerace decide to get all unknown and dangerous mutants. The X-Men are attacked by a bunch of huge evolved hi-tech sentinels. Storm, Cyclops, Cannonball, Wolverine and Jean can't compete with this robot army. We see how Bastion, OZT's leader, confronts Xavier with the imprisoned X-Men and the invasion of Xavier's school...