In the beginning was a unique infinity of shadow, so cold and penetrating, for so long, that it made all light imperceptible. But the light grew and the shadow trembled. The infinite screamed, as much pain as relief. For at this moment a multiverse was born. A set of worlds reflecting one another to the infinite. Instead of being unique, the universe had become multiple. It was once. A universe disappeared, with its myriad worlds. Earth III has already disappeared... Here is the planet Earth. The Earth as we know it. A world that will die before even understanding its destiny. Given this cosmic threat that is hovering over our heads, only a group of the most powerful heroes can possibly change the deal. At least this is what Monitor and his Avant-Courrier hope, sending Superman, Captain Marvel, Captain Atom, Supergirl and Flash to a certain death...