The story starts twenty years in the future where Earth has been desolated and Olympus now sits in the middle of New York City which itself is a wasteland. A group of six teenagers with super powers are making their way to the nearby mountain following the trial of message they have detected from Vincent.
On their way they are attacked by Arthur Curry who is intent on stopping them but they manage to escape and arrive at the shattered ruins of the Infinity Corps building. At first they fear their trip has been in vain as all they can see around them is destruction and corpses, but they suddenly see a monitor screen light up and Vincent’s face appear. He tells them that the answer to saving the world lies in the infinity stones laying around them and that the stones know what to do.
But suddenly the villain Sovereign appears, responsible for the plight of Earth and a fight breaks out. Just before they are overwhelmed they manage to fire up the stones and jump through the resulting portal to escape.
Back in the present day the Justice League are sifting through the debris of an aera of Midway City where it appears the entire population had suddenly gained super-powers and then attacked and killed each other.
Even hardened heroes like Superman are lost for words at the savagery. Wonder Woman says that she came to Man’s World to stop this and every day sine she has failed. The Man of Steel reminds her that they have saved countless billions over the years and while she acknowledges that, she replies that after they have fought off some alien invasion or such like, the people revert back to fighting and violence amongst themselves. What kind of world are they going to leave their children if they cannot stop that?
Suddenly they are interrupted by a portal opening and the six teenagers drop out of it. They are happy to see the League who they have been looking for and when Superman asks them who they are, they reply that they are the league’s offspring and that they have travelled from the near future, where the world is now broken and billions are dead.
And it is all the fault of the Justice League.