In "X2: X-Men United," directed by Bryan Singer, the X-Men face a new threat when Colonel William Stryker launches a military operation against mutants. Wolverine's past comes to light as he and the X-Men join forces with Magneto's Brotherhood to thwart Stryker's plan to use Xavier's Cerebro device against mutants. The team faces internal conflicts and personal struggles while racing against time to save mutantkind. With intense action sequences and emotional depth, "X2" delves deeper into the characters' complexities, explores themes of identity and acceptance, and sets the stage for the continuing evolution of the X-Men universe.