What happened eight months ago that set the Inhumans and X-Men on a collision course? Find out here! The Inhumans travel to Japan where one of the Terrigen Clouds creates a shocking new Inhuman. The X-Men travel to Muir Island where the second Terrigen Cloud causes something truly terrible. When these two events collide a war of catastrophic proportions explodes! COLLECTING: Death of X 1-4.