The Atlantis king, Arthur Curry, has always been trapped between two worlds. And if succeeding in maintaining a balance between the peoples of the land and those of the oceans is proving to be very complicated, Black Manta, his worst enemy, does not make things easier. At the head of an organization called N.E.M.O., he is now ready to put his vengeance plan to execution, consisting of seeing the two homelands of Aquaman, the United States and Atlantis, intertwine.