Tales from the Dark Multiverse: Crisis on Infinite Earths #1

Synopsis

Tempus Fuginaut observes a Dark Multiverse where after the Crisis on Infinite Earths, the new single Earth that is formed is based on Earth 2, not Earth 1. With their universe no longer in existence, the Justice League travel to Ragnarok to battle Surtur. When they fall in battle, Surtur arrives on new Earth to face the combined might of the All-Star Squadron. Surtur kills many of the team, and the surviving members retreat and regroup as the Justice Society of Earth to face Surtur in final battle. But one of the team must make a personal sacrifice in order to ensure the Earth's survival.