watch X-men 2 X-men United full movie online HD 123movies, $title full movie online Gostream plot:With a mansion full of young, powerful mutants and the ferocious Wolverine in babysitter mode, can he defend the school against the one man who can answer his questions? The X-Men band together to find a mutant assassin who has made an attempt on the President's life, while the Mutant Academy is attacked by military forces and students taken hostage for a sinister purpose. What roles do the sinister Mystique and Lady Deathstrike have in all of this? With the war between humanity and mutants escalating to extremes, can the rest of the X-Men trust their old foes to help them?.