The Spectre is influencing the whole world now to the point where wars being declared and is up to Jim Corrigan to realize his true role in all of this.
Bruce believes he was visited by a being known as Mr. Smiler as a kid and now reality is bending to the point where he's now an inmate at Arkham Asylum but he knows this is all part of a plan to break the Bat.
Superman and Mongul are about to destroy each other and Clark will need to do his best to not only defeat his enemy but also keep the unity of planets.
Wonder Woman is now the Warden of Hell but she can't help but remember another time where she and her friends fought a final battle against the Mother of the Multiverse, Perpetua. Now she will have to do anything in her power to bring everything back.
The Reverse-Flash believes they need to kill Paradox before he became the monster he is now but Barry knows there must be another way. However, he might have been chasing the wrong monster all-along.