Believing he is saving a homeless man while on patrol in Gotham City, Batman intervenes for the Wizard who is on a mission to save Shazam from Black Adam when he unleashes the Djinn Brothers from their imprisonment in the Rock of Eternity.
Superman, Wonder Woman, and Martian Manhunter try to stop the Djinn Calythos who has possessed Parasite and plans to use his scimitar to raise a volcano in Metropolis.
Working with Green Arrow, Batman chases after the Djinn Uthool. When Uthool suddenly disappears, it turns out that Uthool has possessed Batman where he defeats Booster Gold, Wonder Woman, and Cyborg in his plot to have the Hall of Justice's core temperature break the Earth's mantle. Upon Uthool transforming Batman into a bat monster, Superman ends up fighting Uthool in order to get him out of Batman.
Superman, Batman, and Wonder Woman pursue the remaining Djinn Abnegazar, Rath, and Nyorlath where they plan to reopen Calythos' fissure. The drain Superman and Wonder Woman's powers upon saying their name. John Constantine arrives to help them as Green Arrow, Plastic Man, and Swamp Thing also arrive to fight the three Djinn. Afterwards, Black Adam breaks free from his Earthly imprisonment to fight the heroes as Batman arrives with Shazam as the Justice League fights Black Adam and the remaining Djinn.
Superman teams up with Space Cabbie and Hawkman to protect Mr. Mind from Lobo.
With most of the League unavalible, Firestorm is the only one to stop a family of androids from blowing up a nuclear power plant.
Batman teams up with John Constantine, Zatanna, and Swamp Thing when Solomon Grundy tries to raise a zombie army.
Wonder Woman and Superman have to rescue Joker from Mongul, whilst Batman and Flash try to stop a massive laughing gas bomb hidden away in Gotham.
Batman and Blue Beatle are thrown back in time where they must stop Chronos from destroying Batman on his first night in Gotham.
A powerless Superman ends up fighting Steppenwolf under a red sun, but the Batman and Big Barda come to his aid.
The Toyman turns the league into players of a computer game and its up to Cyborg to Beat The Toyman at his own game.
Superman has been infected by the "Repulse", who was revealed as Lex Luthor, and has now become the new Repulse. As Wonder Woman and Hawkman try to find a way to save him, Superman must remove those nanobots from his body by sending them into a black hole before he gets pulled into it as well.
A Halloween story. Doctor Fate, John Constatine, Zatanna and Batman are turned into 10 year old childeren by Clarion the Witch Boy who is using The house of mystery to get the Helmet of Fate.
After defeating Harley Quinn, Batman and Zatanna encounter Brother Knight, who uses his dark magic on the Batmobile, which turns into a demonized vehicle. Batman, with the help of Etrigan the Demon, must save Zatanna, stop the Batmobile, and defeat Brother Knight.
Felix Faust steals Zatanna's hat in order to free a ancient demon and get his youth back. While Etrigan and Batman try to stop the demon, Zatanna has to use every magical spell in her arsenal to get her magical hat back.
Luthor and Circe invade Themyscira, home of the Amazons, to obtain a staff that leads to the Fallen Realm and an artifact of the Greek Gods. Wonder Woman, Batman and Superman, must find a way to stop the villains plan.
Brainiac attacks Metropolis to add the city to his collection. Batman, Cyborg, Vixen and even Superman are unable to stop Brainiac's attack plan, so its up to Plastic Man to safe the day.
Superman takes Firestorm, Star Girl, and Blue Beetle on a tour of his fortress. However in the process Superman is trapped in the Phantom Zone, freeing General Zod in the process. Now the trio of teen superheroes has to stop him.
Lobo is back and he is chased by the Red Lanterns. Atrocitus and his Red Lanterns demand a stolen Red lantern ring back from Lobo, who seeks protection from Batman, Superman, and Wonder Woman. When Lobo's real plan unfolds it takes the combined power of the Red Lanters and the Justice league to stop him.
Mr. Freeze is determined to freeze Gotham City once and for all. And he is usinghuger Frost as his power source. While Batman deals with Mr. Freeze its up to Firestorm, who has a crush onhuger Frost, to come to her rescue.
In a Fantastic Voyage-like adventure, Atom shrinks Batman and Wonder Woman, so they can enter Superman's bloodstream and destroy a lethal nanite virus.
The JLA find themselves in danger of losing Wonder Woman when the goddess Athena comes to Earth with an offer Diana can't refuse - filling the position of the Goddess of Truth on Mt. Olympus.
In order for Batman to lure Deadshot into a trap, he has Plastic Man pose as Two-Face. Things go well at first until the real Two-Face escapes from Firestorm's custody.
While Superman visits the bottled city of Kandor, Brainiac attacks the Fortress of Solitude in hopes of reclaiming the Kryptonian city. With no one else available, The Atom commandeers one of the Superman Robots to fight the super genius.
Swamp Thing has a blind date with Poison Ivy, which leads to her controlling him in her plot to overrun Gotham City with plant. It is up to Batman to find 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 Poison Ivy and Harley Quinn on their home turf.
In a strange turn of events, the JLA enlist the help of Space Cabbie and Jonah Hex to stop the hijacking of an intergalactic space train.
Batman teams up with Booster Gold when an alien creature starts literally eating up time.
Space Cabbie inadvertently learns about a great threat to the Justice League when one of his passengers turns out to be Darkseid.
As the Justice League tries to protect the United Nations from Gorilla Grodd gorilla army, Mister Mxyzptlk pops up from the fifth dimension and thinks it would be great fun to put each of the superheroes' brains into another hero's body.
Stargirl has to enlist Constantine's help when Klarion the Witch Boy takes the place of the boy she's supposed to be babysitting.
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 the android Amazo attacks and duplicates the abilities and powers of Superman, Wonder Woman, Batman, Flash, Green Lantern, and Martian Manhunter, the strange super-villain 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. Its up to the the Justice League to catch them again.
Firestorm attends the opening of the new Science Center established by Martin Stein's old college roommate Mister Terrific until it get crashed by Calculator. When Calculator hacks Mister Terrific's T-spheres and separates Firestorm back into Ronnie Raymond and Martin Stein, it up to Martin Stein and Mister Terrific to work together to free Ronnie Raymond and defeat Calculator.
When obnoxious reporter Sid Sharp decides that Clark Kent is getting all his stories because of his connection to Superman, Sid decides to become his own superhero to out scoop him.
Luthor comes up with a new device to defeat Superman. But the kryptonite emitter has the unexpected ability to, once hit, separate people in two, one passive and good (blue), the other aggressive and mean (red). Superman Red, Wonder Woman Red and Batman Red decide to use the weapon on the entire Justice League and conquer the world. Who will stop them and save the day ?.
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 round them up in their secret identities and convince them they are superheroes.
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, the Justice League allows Riddler to help them find him.
When Gorilla Grodd takes control over Titano, only Harley Quinn can reach him.
When members of the Justice League are affected by the Phantom Zone ray and become phantom-like, their only hope for freedom is to somehow get a message to Booster Gold.
Batman needs help from the new God Mr. Miracle to stop one of Darkseid's evil plans. But Batman first has to catch the universes greatest escape artist.
Trapped in a "pocket dimension" the Justice League has to fight in an endless simulation that Darkseid can reset over and over again. Its up to the Batman to come up with an escape plan and contact the Justice League?
Superman and Flash race for charity only to fall into a trap set by Lex Luthor. With the help of time traveling supervillain Chronos, Luthor has build a "time" suit that allows him to control everyone's speed.
Green Arrow and Plastic Man just catched Solomon Grundy, who ends up with them at the the annual Justice League christmas party, what can go wrong? It all works out with help of the Batman, the Flash and the spirit of Christmas. And although Green Arow tries his best, the rest of the League decides to go to the S.T.A.R. labs christmas party after all.
When Booster Gold starts to secretly give tours of the Watchtower to make some extra cash, he inadvertently brings in at least one super-villain disguised as a tourist.
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 granting Shazam's well-meaning Uncle Dudley with superpowers bigger than anyone in the league.
Mr. Mxyzptlk shows Supergirl and Superman that their innate goodness might not be so pure when he takes them to a parallel world where their counterparts are impossibly aggressive and spoiled.
While the Justice League is away on a mission, Plastic Man is not only left in charge of the Watchtower, but also of Krypto Superman's not so ordinary dog,
When Booster and the JLA come under attack by a mysterious and unrelenting new villainess known as Red Velvet, Booster comes to realize she's actually the fiance he left at the altar in the fuTure.