After a stormy seaside lighthouse keeper Thomasrescued the injured Queen of Atlantis, Atlanna, they Fall in love and gave birth to Arthur Currywho is half-human and half-Atlantis . In order to save his lover and son Atlanta chose to leave.
A few years later, Atlanta was forced to return to the seabed country to conclude a political marriage and gave birth to her son Aum. After Aum grew up, he became a king full of hatred for humans on land, and began to annex the forces of developing countries under the sea, and wiped out the people on land in one fell swoop. Aum’s fiancee, Princess Mera of Zebelunderwater kingdomintends to prevent this war. She went to the land to retrieve Arthur Curry and let him return to Asia as the eldest son of Queen Atlana. Atlantis fights for the throne, and Mera wants to help Arthur Curry retrieve the lost trident that can rule the sea.
