Black Manta, still driven by the need to avenge his father's death and wielding the power of the mythic Black Trident, will stop at nothing to take Aquaman down once and for all. To defeat him, Aquaman must turn to his imprisoned brother Orm, the former King of Atlantis, to forge an unlikely alliance in order to save the world from irreversible destruction.
Once home to the most advanced civilization on Earth, Atlantis is now an underwater kingdom ruled by the power-hungry King Orm. With a vast army at his disposal, Orm plans to conquer the remaining oceanic people and then the surface world. Standing in his way is Arthur Curry, Orm's half-human, half-Atlantean brother and true heir to the throne.
The Flash finds himself in a war-torn alternate timeline and teams up with alternate versions of his fellow heroes to restore the timeline.
