What do you get when you cross an island full of giant monsters, a telepathic terrorist and a jet full of mad-as-hell mutants? Monstrous action! Mentallo has the perfect plan: take mental control of the denizens of Monster Island and use them to extort his old employers at Roxxon. But when his monsters attack Tokyo at the same time the X-Men are in town helping one of their own cope with a family tragedy, the mutant heroes are drawn into the conflict. Can Wolverine, Cyclops, Emma Frost and Armor take on an entire island of giant monsters? Sharpen your claws and get ready for a battle of the ages!