The story is set in a world where mutants—humans with genetically endowed superpowers—are treated with suspicion and fear by the general population. The film follows the conflict between two groups of mutants: the peaceful X-Men, led by Professor Charles Xavier, who advocate for coexistence with humanity, and the militant Brotherhood of Mutants, led by Magneto, who believe in mutant superiority and seek to overthrow human society. As the X-Men recruit new members, including Wolverine and Rogue, they must thwart Magneto's plan to turn world leaders into mutants and prevent an all-out war between humans and mutants. The movie explores themes of prejudice, identity, and the moral complexities of power.