When strange interferences start appearing under the ocean, the Justice League investigates what may be the source of the problem. Batman, Superman, Wonder Woman, Black Canary, Green Lantern, Flash, Martian Manhunter and the new comer Green Arrow will find that it all comes from the underground city of Atlantis, ruled by their King, Arthur Curry, aka. Aquaman. From then on, the Justice League will need to be ambassadors for peace, in a war between Atlantis and the surface world.
