Aquaman anxiously awaits the birth of Dolphin and Tempest's baby. But the blessed moment arrives in the midst of an attack on Atlantis from a strange new adversary with enough power to destroy the undersea nation!
A woman interviews an unseen man in a mansion set in the future as she fact checks for the Atlantis Chronicles with the man going over the history of the city. While in the past Aquaman appears on the Grant Gibson show with Aquaman addressing the surface world over the actions of the nation of Cerdia, who have defied international law and made life harder with their disastrous actions in the oceans.Here he is warned by the fish brought out of a bomb under the stage, with him and Garth disarming it realizing someone is trying to murder him.
While back in the city Dolphin enters into labor as Atlantis is attacked with Aquaman and Garth rushing back to battle the invaders. Aquaman then meets his invaders a group of coral who have taken a larger shape to attack, while Garth arrives at the birthing room to be greeted by Dolphin and his son. While on the surface the nation of Cerdia claims they have gained information of an attack being planned on them by Atlantis and it's intention to wipe them out. While in the future, it is revealed the reporter is the granddaughter of Garth who is giving the interview, telling her it gets so much worse.