Arthur Curry, the human-born heir to the underwater kingdom of Atlantis, goes on a quest to prevent a war between the worlds of ocean and land.
Born upon the shores of the surface world, Arthur Curry (Jason Momoa) discovers that he is only half human, with the other half of his blood being of Atlanteean descent, thus making him the rightful heir to the throne of the undersea kingdom of Atlantis. However, Arthur learns that Atlantis is being ruled by his malicious half-brother Orm (Patrick Wilson), who seeks to unite the seven underwater kingdoms and wage war upon the surface. With aid from Nuidis Vulko (Willem Dafoe) and the gorgeous Mera (Amber Heard), Arthur must discover the full potential of his true destiny and become Aquaman in order to save Atlantis and the surface from Orm's evil plot.
Arthur Curry (Jason Momoa) has always been different. His mother was an honorable Queen of Atlantean descent, while his father, a simple human lighthouse keeper. They met after she fled to land, running from her forced fiancée. A few years later, Arthur is a toddler, when his mother was forcefully and reluctantly taken back to Atlantis, where she was believed to be executed. Fast forward and Arthur is now an adult. After learning the truth about his destiny, he sets out to find a King's lost trident and stop an entire war before it even starts.