"Justice League: Throne of Atlantis" is a direct-to-video animated superhero film produced by Warner Bros. Animation and Warner Premiere. The movie takes place after the events of "Justice League: Heroes United" and follows the team as they face a new threat to global security. When the legendary underwater city of Atlantis is rediscovered, the world's greatest heroes must band together to prevent the villainous Arthur Curry, aka Aquaman's half-brother, from claiming the throne and unleashing a powerful ancient technology that could destroy the surface world.