Professor X, a mutant with remarkable abilities achieved through mutation, leads XMEN in promoting amicable cohabitation between humans and mutants. Following news of an assault on the Space Observation Center, Professor X dispatches well-versed members like Wolverine to the site, leaving only him and inexperienced 13-year-old Jubilee at the headquarters. Suddenly, their foe, Magneto, sieges the base with the intention of stealing "Cerebro," an enhancer of mutant powers. Magneto aims to employ it against humanity, bringing about their destruction.