In Aquaman 3: The Lost Kingdom (2025), Arthur Curry returns to defend Atlantis and the surface world from a catastrophic threat. The movie picks up with Arthur struggling to balance his responsibilities as king and protector. His main adversary, Black Manta, has gained access to an ancient dark power capable of controlling the oceans, forcing Arthur into an uneasy alliance with his estranged brother Orm, the Ocean Master.
The trailer hints at large-scale battles both underwater and on land, as new creatures from lost civilizations rise from the depths. Arthur must journey across dangerous waters to repair the magical trident, the key to stopping Black Manta’s ambitions. Along the way, Aquaman faces betrayal, personal sacrifice, and the discovery of long-forgotten secrets about Atlantis.
With epic visuals and fast-paced action, the trailer teases a climactic showdown between Arthur and Black Manta, with the fate of the ocean and humanity hanging in the balance. Arthur’s relationship with Mera and his sense of identity as both king and hero will also play critical roles in shaping the film’s emotional journey.