After India Stoker's father dies, her Uncle Charlie, who she never knew existed, comes to live with her and her unstable mother. She comes to suspect this mysterious, charming man has ulterior motives and becomes increasingly infatuated with him.

Before Charles Xavier and Erik Lensherr took the names Professor X and Magneto, they were two young men discovering their powers for the first time. Before they were arch-enemies, they were closest of friends, working together with other mutants (some familiar, some new), to stop the greatest threat the world has ever known.