Set in the lost city of Atlantis, Aquaman is the hero from the deep who protects the sea against any foes who threaten the peaceful undersea life. Aided by his ward Aqualad, Aquaman fights for justice on the ocean floor while keeping close contact with friends on dry land. On September 14, 1968 the Aquaman animated series was combined with Superman and Batman, along with brand new episodes starring the Justice League of America- Flash (Barry Allen), Hawkman (Carter Hall/Katar Hol), Green Lantern (Hal Jordan), and Atom (Ray Palmer), along with the Teen Titans (Aqualad, Kid-Flash, Robin, Speedy, and Wonder Girl.) Although Wonder Girl was among the Teen Titans, Wonder Woman was not involved in the show.

The Superfriends were once again headquartered at the Hall of Justice in Metropolis, and battled such familiar foes as Lex Luthor, Scarecrow and Darkseid.  Second only to Challenge of the Superfriends, Super Powers Team: Galactic Guardians was one of the most faithful TV adaptations of DC Comic superheroes. Like its predecessor, SuperFriends: The Legendary Super Powers show, Galactic Guardians featured Adam West as Batman along with featuring Superman and Robin and showcasing relatively new superheroes Firestorm and Cyborg as well as members of previous Super Friend incarnations (Samurai, Green Lantern, Aquaman, Wonder Woman, Hawkman, The Flash). The show featured Darkseid of Apokolips and his minions Kalibak and DeSaad as the primary protagonists. Other DC villains (the Joker, Lex Luthor, the Penguin, Scarecrow, Felix Faust, Joker, The Penguin, Brainiac, etc.) also appeared from time to time.