Arthur’s the Prince of Atlantis but he has no interest in his heritage and just wants a normal life in his Lighthouse with his dad. That changes when Black Manta and his crew steal an Atlantean artefact and kill Arthur’s dad escaping, Arthur’s recruited by Mera & Vulko to track Manta and get the Artefact. As Arthur’s the rightfull heir to the throne his younger brother Orm doesn’t want Arthur anywhere near Atlantis so Mera, Vulko and Kaldur’ahm must train Arthur in secret. Mera is able to track down the Artefact so her, Arthur and Kaldur’ahm go to fight Manta, we discover the Artefact is a staff that commands a species called the Trench which Manta summons to defeat the heroes. Arthur & Manta fight, Kaldur’ahm fights and defeats The Fisherman & Mera holds off the Trench to buy them time however Kaldur’ahm then reveals himself as Mantas son and they both escape. Orm discovers Arthur & Mera and they get into a fight but then they all agree to save Atlantis they must work together. The the trio track down Manta and Arthur & Orm fight Manta & Kaldur whilst Mera fights the Trench and Mantas men. Kaldur’ahm realises his father is wrong and turns on him and they return the staff. Arthur, Orm and Atlanna have a meeting and Arthur says he wants Orm to be the next king whilst he works on making the surface world ready to accept Atlanteans. Arthur & Mera both move into the lighthouse and start a relationship, back in Atlantis Orm stabs his mother in the heart and smiles.
