Justice League Action — Season 1

The villainous Black Adam battles Batman on the Rock of Eternity and unleashes a horde of Djinn determined to turn the Earth back to its pre-human, volcanic state.

Superman, Wonder Woman, and Martian Manhunter try to stop the second Djinn, Kalathoth, who has Parasite's powers.

When Batman gets possessed by an evil Djinn named Uthool, Superman and other members of the Justice League must battle the Dark Knight.

When the JLA tries to stop the Brothers Djinn, the ghoulish trio are able to direct spells on our heroes by saying their names, forcing the heroes to disguise themselves as each other in order to foil the spells.

While escorting Mr. Mind between planets, Superman is attacked by Lobo, and seeks help from Space Cabbie.

Firestorm encounters a group misguided robots who intend to blow up a nuclear power plant.

Batman teams up with John Constantine, Zatanna, and Swamp Thing when Solomon Grundy tries to raise a zombie army with a magical gem that would also enable him to transform anyone into zombies.

Wonder Woman and Superman have to rescue Joker from Mongul. Meanwhile, Batman and Flash try to stop a massive laughing gas bomb that Joker has hidden away in Gotham City.

Batman and Blue Beetle are thrown back in time where they must stop Chronos from destroying Batman on his first night in Gotham City where he faces off against Carmine Falcone and his men.

After a brief team up with Batman and Big Barda in their battle against the Parademons, Superman is transported to a planet orbiting a red sun by Steppenwolf. This is part of Steppenwolf's plan to kill Superman and become a legend. Now with his powers slowly depleting, Superman must defeat Steppenwolf and get back to Earth. As this is happening, Batman and Big Barda head to Darkseid's fortress on Apokolips in order to find information on where Superman is transported to.

When the Justice League Watchtower is invaded by Toyman and his army of....toys, Wonder Woman, Superman, Cyborg, and Batman are turned into players in a twisted version of a fighting game. Now Cyborg will need all of his gaming skills to get out of this one.

While out with Wonder Woman, Superman has been infected by the "Repulse" as part of Lex Luthor's plan to destroy Superman. Because of this, Superman has now become the new Repulse. As Wonder Woman and Hawkman try to find a way to save him, Superman must remove nanobots from his body by sending them into a black hole before he gets pulled into it as well. Though Lex Luthor plans to take advantage of the situation by trying to kill Superman.

Cain the Caretaker tells the audience a Halloween tale about the House of Mystery where Batman, Zatanna, Constantine, and Doctor Fate are all turned back into 10-year-olds, with very little memory of who they really are, by Klarion the Witch Boy. After falling for Klarion's trap and regaining their memories, the 10-year-old Justice Leaguers must fight Klarion the Witch Boy even when he unleashes vampires, a werewolf, a monster that resembles Frankenstein's monster, a pumpkin-headed creature, and some small demons on them. They must also find a way to defeat Klarion when he gets his hands on the Helmet of Fate, turn themselves back to normal, and escape the House of Mystery before it disappears by midnight.

"Speed Demon" After defeating a magically-enhanced Harley Quinn, Batman and Zatanna encounter Ember and her boss Brother Night who later uses his dark magic to animate and control the Batmobile in the form of a demon car and kidnap Zatanna in the process where she gets bound and trapped in the Batmobile. With the help of Etrigan the Demon, Batman must save her, stop the now-demonic Batmobile, and defeat Brother Night and Ember even when Etrigan the Demon enlists Merlin to help them out by enchanting an ice cream van for a high-speed battle.

"Hat Trick" Felix Faust steals Zatanna's hat during a mannequin attack on a mall. He plans to use Zatanna's hat to free a massive demon called Ghast and get his youth back upon performing a summoning ritual at the Hebrides. While Batman and Etrigan the Demon face off against Ghast to keep him from getting to the mainland, Zatanna uses every trick in her arsenal to get her hat back from Felix Faust.

"Luthor in Paradise" With help from the seductive witch Circe, Lex Luthor invades the Amazon island of Wonder Woman's home world, Themyscira, to obtain a mystical staff from Hippolyta that leads to the Fallen Realm. Their goal upon arriving in the Fallen Realm is to obtain the Oculus of the Argo, an artifact of the Olympian Gods that would give anyone that wields it the powers of Zeus which had been entrusted to Hippolyta by Hera. With help from Superman and Batman, Wonder Woman must find a way to stop those villains before they obtain the Oculus of Argos.

While Superman, Batman, Cyborg and Vixen try to stop Brainiac, Plastic Man sneaks into Brainiac's spaceship to destroy the shrink ray and save the world to prove his worth as a superhero.

As Superman gives Blue Beetle, Firestorm and Stargirl a tour of the Fortress of Solitude, they run afoul of General Zod, Faora and Non, Kryptonian criminals accidentally freed from the Phantom Zone.

"Rage of the Red Lanterns" Lobo steals three newly-forged rings from the Red Lanterns and pits Atrocitus, Zilius Zox, Bleez, Dex-Starr, and Skallox against Batman, Superman, Wonder Woman, and Cyborg. After Lobo unlocks the Spider Gauntlet's powers, the Justice League and the Red Lanterns must team up to defeat him.

"Freezer Burn" Mr. Freeze flies on his freeze gun-wielding airship to freeze all of Gotham City using Killer Frost as his power source after tricking her into an alliance after she evaded Firestorm. While Batman deals with Mr. Freeze, Firestorm will have to save Killer Frost where he develops a crush on her at the same time

"Inside Job" When Superman is infected with a nanobot swarm that is sucking up Superman's solar energy upon being shot into him by Lex Luthor, Atom shrinks Batman and Wonder Woman down to micro-size so that they can enter his bloodstream and dispose of the nanobot swarm by disposing of the nanobot queen.

"The Trouble with Truth" Athena shows up wanting Wonder Woman to relocate to Mount Olympus so that she can fill in the position of Goddess of Truth. In order to see if Wonder Woman is worthy, Athena follows her, Batman, and Green Arrow on their mission to stop the H.I.V.E. from setting their cobalt fusion bomb off at the docks.

"Double Cross" In order for Batman and Firestorm to lure Deadshot into a trap, they have Plastic Man pose as Two-Face due to the fact that Deadshot was hired by Penguin to kill him. Things go well at first until the real Two-Face escapes from Firestorm's custody.

"Battle for the Bottled City" After the events of "Plastic Man Saves the World," Atom shrinks Superman down to microscopic size so that he can enter the Bottled City of Kandor that was previously in Brainiac's possession. When Brainiac breaks into the Fortress of Solitude, defeats Cyborg, and reclaims the bottle, Atom must try to stop Brainiac all on his own with the help of some Superman robots.

"Garden of Evil" When Swamp Thing has a blind date with Poison Ivy which leads to her controlling him in her plot to overrun Gotham City with her monstrous plants, Batman works on an antidote to free Swamp Thing from Poison Ivy's control. Meanwhile, Poison Ivy is collaborating with Harley Quinn to help her keep Swamp Thing in check. So Superman, Firestorm, and Vixen work to fight the Queens of Crime on their home turf.

"All Aboard the Space Train" In a strange turn of events, Batman and Cyborg enlist the help of Space Cabbie and a defrosted Jonah Hex to stop Kanjar Ro's hijacking of an intergalactic space train.

"Time Out" After Wonder Woman freezes in time following a fight with the H.I.V.E., Batman teams up with Booster Gold when a creature called the Chronovore starts literally eating up time.

"The Fatal Fare" While dealing with a competition in Roxy Rocket, Space Cabbie inadvertently learns about a great threat to the Justice League when one of his passengers turns out to be Darkseid. Upon taking him to one of the moons of a planet, Space Cabbie discovers that Darkseid, Desaad, and Kanto are torturing Superman about the virus in their Mother Box. Space Cabbie ends up doing a trick that ends up bringing Hawkman and Swamp Thing to his aid.

As Superman and Batman take Stargirl on a ride-along to protect the United Nations from Gorilla Grodd and his army of gorillas, Mister Mxyzptlk pops up from the 5th Dimension and thinks it would be great fun to put each of the superheroes' brains into another hero's body. Even when the Justice League's bravo team and Firestorm arrive and fall for the same brain-swapping move, the Justice League must find a way to trick Mister Mxyzptlk into saying his name backwards and defeat Gorilla Grodd.

After helping Batman take down some criminals, Stargirl babysits Professor Anderson's son Timmy while he is away. During this time, Klarion the Witch Boy invades Professor Anderson's house and poses as Timmy in order to obtain the Magdalene Grimoire. Upon Klarion the Witch Boy shedding his disguise when the Magdalene Grimore is found, Stargirl notifies Batman of this and he brings John Constantine to help him and Stargirl reclaim the Magdalene Grimoire and defeat Klarion the Witch Boy.

Green Arrow becomes involved with Booster Gold when he discovers that the self-centered superhero has brought dinosaurs back from the past for a money-making venture.

When Amazo attacks Superman, Wonder Woman, Batman, Flash, Green Lantern, and Martian Manhunter where he begins to replicate their powers one-by-one, the klutzy Superman look-alike Bizarro becomes the Justice League's last hope to turn things around.

Joker springs Lex Luthor from prison with the help of a Mother Box. Superman, Wonder Woman, Batman, and Flash must work to catch them as they travel all over the world.

Firestorm attends the opening of the new Science Center established by Martin Stein's old college roommate Mister Terrific until it gets crashed by Calculator. When Calculator hacks Mister Terrific's T-spheres and separates Firestorm back into Ronnie Raymond and Martin Stein, it's up to Martin Stein and Mister Terrific to work together to free Ronnie Raymond and defeat Calculator.

Struggling Daily Planet reporter Sid Sharp has aspirations on becoming a superhero and has been having problems with Clark Kent beating him to the Superman stories. When Sid Sharp is mistaken as Superman by the Parademons, Darkseid plans to lure Superman into a trap that is manned by Desaad, Granny Goodness, Kalibak, and Kanto.

Luthor comes up with the means to separate each Justice Leaguer in two, one blue and passive and good, the other red and aggressive and mean.

Sinestro's ring is suddenly much more powerful than usual, so the Justice League sends a microscopic Atom into his ring to find out what the cause might be.

When Firestorm discovers that League members have no memory of who they are, it's up to him to find them in their secret identities and convince them they are Super Heroes.

A mysterious creature abducts Batman, Mr. Terrific, Luthor and two of the brainiest villains in the universe to put them to the test to discover who is the smartest among them.

When the Joker traps Batman, Wonder Woman and Green Arrow decide against their better judgement to allow Riddler, who is trying to go straight, to help them track him down. Riddler assists them because Joker has stolen his riddle motives, as he deciphers Joker's riddles that lead him, Wonder Woman, and Green Arrow to Solomon Grundy's cell, the Iceberg Lounge, and the Gotham Art Museum.

When Gorilla Grodd takes control over the giant chimpanzee Titano, the only person who seems to be able to override his control is the medical worker who nursed him as a chimp at S.T.A.R. Labs. Unfortunately, she's now known as Harley Quinn. As Superman wears a lead suit when going up against Titano's Kryptonite gaze, Stargirl must help Harley Quinn free Titano so that Superman and Stargirl can defeat Gorilla Grodd.

An explosion near the sun opens a temporary rift into the Phantom Zone allowing General Zod to escape as he plans to free Faora and Quex-Ul. When members of the Justice League are affected by a fragment of Krypton (which didn't turn into Kryptonite) and become phantom-like, their only hope for freedom is to somehow get a message to Booster Gold to get them out of the phantom-like state before they end up in the Phantom Zone as well as stopping General Zod before he frees Faora and Quex-Ul.

Big Barda's life hangs in the balance when Batman is forced by Darkseid to track down the elusive Mister Miracle (who is Big Barda's boyfriend) and bring back the Anti-Life Equation he stole from Apokolips. Even when Batman finds Mister Miracle, he has to compete with Granny Goodness and the Female Furies members Bernadeth and Lashina to see who will get the Anti-Life Equation to Darkseid first.

When Batman discover he and the rest of the Justice League are robots while fighting villains that don't normally team up, he, Superman, Wonder Woman, Cyborg, and Booster Gold investigate to find out who did this and why? They find their answers to be part of a research done by Darkseid where the robot Justice League members can't attack him or the Parademons.

Superman and Flash race for charity only to fall under a trap perpetrated by Lex Luthor who has devised a "time" suit with the help of Chronos that allows him to steal the speed force from both Flash and Superman, making Lex the fastest man alive.

Green Arrow is determined to finally throw a successful holiday party for the Justice League; his plan is however thwarted when Plastic Man brings a tranquilized Solomon Grundy to the gathering.

When Booster Gold starts to secretly give tours of the Watchtower to make some extra cash, he inadvertently brings in super villains, poorly disguised as tourists.

When Green Lantern leaves his ring in an intergalactic restroom after washing his hands, he discovers it's gone, leading him on a wild chase for the aliens who might have taken it.

Mr. Mxyzptlk decides to create some mischief by endowing Shazam's well-meaning Uncle Dudley with superpowers bigger than anyone in the league.

Mister Mxyzptlk alters history so that Supergirl and Superman are respectively a ditzy actress and a Kaznian enforcer that never met. Now with the rest of the League nonexistent, the only one left to save the day is Booster Gold.

While the Justice League is away on a mission, Plastic Man is not only left in charge of the Watchtower, but also Superman's dog Krypto just as the Red Lantern squad attacks the Watchtower.

When Booster and the JLA come under attack by a mysterious and unrelenting new villain known as Red Velvet, Booster comes to realize she's actually the fiance he left at the altar.