The evolution continues in X2: X-Men United, featuring the extraordinary original X-Men - along with amazing new mutants possessing fantastic powers that have to be seen to be believed. In the wake of a shocking attack on the President, the X-Men face their most dangerous mission ever. They must stand united with their deadliest enemies to combat a menace that threatens every mutant on the planet. But could this new alliance backfire and annihilate the human race ?