In this new animated series, Batman travels to the past and future, journeys beneath the sea and into outer space, and teams up with fellow heroes such as Blue Beetle, Green Arrow, Plastic Man, Aquaman, Red Tornado, Wildcat, and many more. Beginnings usually have a small introduction and are usually not related to the remainder of the episode. The show is split into two parts: A small adventure right before the theme song, and the main adventure right after that, similar to The Batman.
Batman teams up with Superman and Wonder Woman when their arch-enemies Joker, Lex Luthor and Cheetah team up to defeat them by adopting a strategy of attacking a different hero: Wonder Woman vs Joker, Superman vs Cheetah, and Batman vs Luthor.
Two years ago, Batman and the second Atom (Ray Palmer) worked together to save themselves from villains like Cannoneer, Dwarfstar, and Thinker. Ray later retired and Ryan Choi takes up the mantle. Two years later, Palmer's arch-nemesis Chronos plans an attack and Batman goes looking for him. When Batman disappears, Aquaman and Atom (Ryan Choi) must shrink to a microscopic size in the Amazon Jungle to save the Caped Crusader and Ray Palmer from tiny aliens called Katarthans who are led by Chancellor Deraegis.
After Batman disappears following a fight with Catman, the Justice League International and Rip Hunter travel through time to stop the minions of Equinox from wiping out all the incarnations of Batman throughout time.
Following fights with Lex Luthor, Metallo, El Gar-Kur, Mister Mxyzptlk, and Toyman, Superman is infected with a Red Kryptonite necklace secretly given to Lois Lane by Lex Luthor which causes Superman to become evil. Now Batman must work with Krypto to hold off Superman until the effects of the Red Kryptonite wear off.
Following battles with Tattooed Man and Major Disaster, Batman teams up with Hal Jordan to fight Star Sapphire and her Zamaron army. Unbeknownst to Batman and Hal Jordan, Star Sapphire is actually Carol Ferris whom the Zamarons abducted and turned into Star Sapphire.