X-Men: Children of the Atom The game's plot is loosely based on the "Fatal Attractions" storyline. The main antagonist is Magneto, who plans to unleash an electromagnetic pulse on the Earth that will disrupt the magnetic fields and create havoc on the world's electrical systems ushering in a Dark Age for Earth's non-mutant population. With the promise of a mutant-run planet, the X-Men's most formidable foes join forces with Magneto.