As the Marvel Universe is destroyed pantheon by pantheon by the dark god, Chaos King, the rift between the underworld and Earth is violently ripped apart. How can a handful of deceased X-Men make a difference in Chaos King's war against life? Get ready for the startling answer when the most unique team of mutants ever bands together to save the Earth from eternal darkness. Then, Alpha Flight gets in on the action in a battle larger than life or death! And the God Squad launch a last, desperate plan to halt Mikaboshi's march towards oblivion!