Quick recap
In 1985 Maine, lighthouse keeper Tom Curry rescues Atlanna, queen of Atlantis. They have a son, Arthur, but she returns to the sea to protect her family and is said to have been executed. In the present, Arthur takes on pirates and lets David Kane's father die, and David swears revenge. Orm, Arthur's half-brother and king of Atlantis, wants to unite the undersea kingdoms against the surface. Mera convinces Arthur to claim the throne, and Vulko points him to the Trident of Atlan. Beaten by Orm in a duel, he flees with Mera on a quest through the Sahara and Sicily. At the center of the Earth, Arthur finds his mother alive, faces the Karathen and wins the trident. He defeats Orm, spares his brother and becomes king.

