The film takes place after the events of Batman v Superman: Dawn of Justice. The story revolves around Aquaman, Cyborg, and Wonder Woman as they search for the legendary Throne of Atlantis. The throne holds immense power, and various factions, including the Atlanteans, the humans, and the gods, are eager to claim it.

The film features a stellar voice ensemble that brings weight to this aquatic civil war: Voice Actor Role / Significance Matt Lanter