Episode Count: 91
Season:
1
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2
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3
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4
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5
Year:
2001
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2002
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2003
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2004
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2005
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2006
Original Air Date: 17 November 2001 Batman and Superman team up to deal with an alien invasion, and a telepathic message leads the duo to a military base housing future ally J'onn J'onzz.
Original Air Date: 17 November 2001 With the nation's warheads disarmed by Superman after a peace initiative, the heroes rally to stop nocturnal alien invaders from blocking out the sun.
Original Air Date: 17 November 2001 The heroes are captured by the Martians just as their leader, Imperium, arrives. After vanquishing the invasion, they decide to officially join forces as the Justice League.
Original Air Date: 19 November 2001 Green Lantern is brought up on charges of genocide and is forced to attend an intergalactic trial courtesy of the Manhunters.
Original Air Date: 26 November 2001 Suspecting a railroad job, the League digs deeper into the charges against the Lantern. When the Guardians of the Universe arrive, the Manhunters' true motivation is revealed.
Original Air Date: 3 December 2001 The team encounters an agitated Aquaman while trying to rescue a submarine crew. His opinion of surface dwellers doesn't improve after an attempted assassination by Deadshot.
Original Air Date: 10 December 2001 The team is captured after helping Aquaman stop an underwater coup by his half-brother, Orm. Struggling to free himself and his son from death, Aquaman sacrifices his own hand.
Original Air Date: 21 January 2002 Wonder Woman returns to Paradise Island after her abrupt departure, only to find the Amazons turned to stone. Sorcerer Felix Faust demands three mystical artifacts as the ransom.
Original Air Date: 28 January 2002 While helping Wonder Woman liberate her island, the League discovers Faust is attempting to free hades and open a portal to tartarus, a pit of souls.
Original Air Date: 24 February 2002 While handling an asteroid in space, Superman and J'onn J'onzz are captured and banished to Warworld, a planet where combatants are forced to duel to the death.
Original Air Date: 3 March 2002 Fight promoter and new contestant Mongul instructs Superman to throw the fight against him, or he'll destroy the enslaved Draaga's home planet.
Original Air Date: 10 March 2002 Gorilla Grodd uses a mind-control device to obtain isotopes that will help destroy Gorilla City. To that end, he enlists Flash to oppose the Green Lantern.
Original Air Date: 17 March 2002 Central City is under the rule of Grodd, who plans on attacking Gorilla City with missiles. As Flash confronts the maniacal ape the team races to stop the destruction.
Original Air Date: 7 April 2002 The Justice League must battle a fanatical Amazon scheming to kill all the men in the world.
Original Air Date: 14 April 2002 With the male heroes suffering from Aresia's bio-weapon, the female Justice Leaguers race to stop their foe before she can contaminate the entire planet.
Original Air Date: 21 April 2002 Several Leaguers are flung into another dimension populated with Green Lantern's childhood comic book heroes, the Justice Guild.
Original Air Date: 28 April 2002 Still trapped in an alternate dimension, the Leaguers help the Justice Guild wage war against the Injustice Guild. But the secret behind this reality threatens to erase them all.
Original Air Date: 6 September 2002 Arrested and terminally ill, Lex Luthor breaks out of prison to assemble a team of supervillains to help him destroy the Justice League.
Original Air Date: 13 September 2002 His illness treated by Ultra-Humanite, Luthor pressures his cadre of super-villains to combat the League. While captured, Batman exploits the greed of the group to his advantage.
Original Air Date: 20 September 2002 The League joins with Etrigan the Demon to battle Morgan Le Fay's scheme of world conquest for her son.
Original Air Date: 27 September 2002 The diabolical Le Fays finally obtain the Stone and plan to use it to revert England back to Medieval Times; Wonder Woman resists the advantage of Harv Hickman-just before he is turned into a parasite.
Original Air Date: 4 October 2002 Green Lantern's friend is transformed into a monstrous elemental shape-shifter by his jealous employer and is tricked into thinking Green Lantern is responsible.
Original Air Date: 11 October 2002 A confused Mason/Metamorpho is finally convinced the League is there to help him. Together they race to head off the newly transformed Stagg before he kills Mason's fiancé-his own daughter.
Original Air Date: 9 November 2002 The Justice League go back in time to World War II to prevent the immortal Vandal Savage from using future technology to change history.
Original Air Date: 9 November 2002 Mired in World War II, the Leaguers discover that Vandal Savage has usurped Hitler and is getting technology from his future self, setting the stage for his eventual rule.
Original Air Date: 9 November 2002 With the help of Sgt. Rock, the League races to stop Savage's plans to invade the U.S. with warplanes and forever alter the course of world history.
Original Air Date: 5 July 2003 Darkseid convinces the League to help him fight Brainiac from destroying his planet of Apokolips.
Original Air Date: 5 July 2003 Trapped in Brainiac's headquarters, a temperamental Superman discovers that the metal monstrosity has made a deal with Darkseid, whose own son Orion engages him in battle.
Original Air Date: 4 October 2003 Lex Luthor finds an extremely advanced android that can imitate superpowers and manipulates it to attack the Justice League.
Original Air Date: 4 October 2003 Android Amazo has absorbed all the League's powers, but the mind-reading talent taken from J'onzz prompts him to question Luthor's true motivations. Meanwhile, Batman reveals he has a contingency plan for Superman going AWOL: Kryptonite.
Original Air Date: 11 October 2003 A man becomes a supervillain who attacks his victims in their dreams.
Original Air Date: 11 October 2003 With the other members of the Justice League trapped in their worst nightmares, Batman and Martian Manhunter have to defeat Doctor Destiny and save them before it is too late.
Original Air Date: 18 October 2003 Diana makes friends with a flighty princess only to discover her fiancé is the immortal supervillain, Vandal Savage.
Original Air Date: 18 October 2003 The Justice League works to thwart Vandal Savage's plan to blackmail the nations of the world with an orbiting rail gun.
Original Air Date: 25 October 2003 After learning of his mentor Katama's fall in battle, the Green Lantern travels to a world at the edge of the galaxy to investigate.
Original Air Date: 25 October 2003 Joined by Hawkgirl, Martian Manhunter, and the Flash, the Green Lantern and Katma face the fanatic cult leader Despero in an effort to stop his plans to conquer the galaxy.
Original Air Date: 1 November 2003 In an alternate reality, a version of the Justice League known as the Justice Lords discovers the League's world and plot to take it over.
Original Air Date: 1 November 2003 With the Justice League out of the way, the Justice Lords begin to establish their own style of order.
Original Air Date: 8 November 2003 Released in an archaeological dig, an evil entity takes control of various characters and threatens the world.
Original Air Date: 8 November 2003 With the other members of the Justice League possessed by the entities, the Flash must find a way of stopping them from carrying out their plan to exterminate humanity.
Original Air Date: 15 November 2003 Solomon Grundy attacks a harbor. After the military has him contained, Aquaman arrives and steals Grundy. When the League finds out Aquaman is involved, they head to Dr. Fate to get some answers.
Original Air Date: 15 November 2003 Fate and Aquaman wanted to sacrifice Grundy to prevent the return of a mystic being. The being has arrived, Aquaman leaves to protect Atlantis. Hawkgirl finds out the being had visited her Homeworld long ago.
Original Air Date: 22 November 2003 While the Justice League is experiencing serious internal friction, Gorilla Grodd carefully assembles a well organized supervillain team to attack it.
Original Air Date: 22 November 2003 With the Justice League disbanded, its former members are targeted by the super-villains of the Secret Society.
Original Air Date: 29 November 2003 During a battle with the Revenge Squad, Superman apparently falls in battle.
Original Air Date: 29 November 2003 Superman has been transported into the distant future. With no powers, he must find a way to get back to the present, he finds an unexpected ally in Vandal Savage, the Earth's lone human survivor. Meanwhile in the present Lobo, joins the League, as Superman's replacement.
Original Air Date: 7 December 2003 The Joker creates havoc in Las Vegas with his Royal Flush Gang.
Original Air Date: 7 December 2003 The Joker's real plan becomes apparent when he unleashes Ace upon the Justice League.
Original Air Date: 13 December 2003 Members of the Justice League celebrate Christmas
Original Air Date: 29 May 2004 Hawkgirl's people, the Thanagarians, arrive to offer the planet protection from another alien race threatening to invade Earth.
Original Air Date: 29 May 2004 With Earth now under Thanagarian control, the Justice League goes into hiding to recover and cope with the betrayal of one of their own.
Original Air Date: 29 May 2004 The Justice League launch an assault on the Thanagarians before the activation of a hyperspace gate that will destroy Earth.
Season 3, Episode 1: Initiation
Original Air Date: 31 July 2004 After unsuccessfully attempting to recruit the Green Arrow to join the expanded League, he plays an important role with a team sent to manage a crisis in Asia.
Original Air Date: 7 August 2004 Batman and Wonder Woman find Superman immobilized in the Fortress of Solitude by a plant sent by the would-be conqueror Mongul.
Season 3, Episode 3: Kid Stuff
Original Air Date: 14 August 2004 After Modred magically eliminates adults from the world, his mother transforms a League team into children in order to do battle with her son in that situation.
Original Air Date: 21 August 2004 Wonder Woman and a pair of fractious superhero brothers are sent to stop a civil war that is being manipulated by the war god, Ares.
Original Air Date: 28 August 2004 When Circe changes Wonder Woman into a pig, Batman and Zatanna must find her and change her back.
Original Air Date: 4 September 2004 Supergirl, with the help of Green Arrow and the Question, investigates the nature of her disturbing dreams that have her committing murder.
Original Air Date: 11 September 2004 Eager for fame and fortune, the futuristic Booster Gold is frustrated when he is continually sidelined by the Justice League leadership. When the Justice League faces its latest foe, Booster Gold is relegated to crowd control, only to come across a rapidly emerging disaster -- one that forces him to confront his motives in becoming a superhero.
Season 3, Episode 8: The Return
Original Air Date: 18 September 2004 After blasting through the entire Green Lantern Corps, the android Amazo returns to Earth. Only the Justice League stands between him and his goal -- the now-reformed Lex Luthor.
Season 3, Episode 9: Ultimatum
Original Air Date: 4 December 2004 A team of too good to be true superheroes find out the truth about their origins and go on the rampage.
Season 3, Episode 10: Dark Heart
Original Air Date: 11 December 2004 The League must stop an alien weapon that destroys a planet by consuming its material to grow until it uses it all.
Original Air Date: 18 December 2004 When Solomon Grundy is inadvertently brought back to life as a mindlessly rampaging monster, the disgraced Hawkgirl must join the fight to stop him.
Original Air Date: 22 January 2005 While pursuing a time traveling thief, Batman, Wonder Woman and Green Lantern team up with a collection of DC Universe western heroes to battle the villain controlling him.
Original Air Date: 29 January 2005 The time traveling League team goes to the future to team up with that time's League to battle Chronos who rules.
Original Air Date: 5 February 2005 The Black Canary and The Green Arrow team up to find out what the older superhero, Wildcat, is doing on his off time.
Original Air Date: 12 February 2005 To save Oberon from Granny Goodness, Mr. Miracle, his wife Big Barda and the Flash must rescue Kalibak from the clutches of Vermin Vunderbarr.
Original Air Date: 19 February 2005 The League assistance of an island suffering a volcanic eruption is complicated by Doomsday escaping his bonds and attacking Superman.
Original Air Date: 21 May 2005 A covert operations team largely made up of convicted supervillains is sent to steal a necessary item from Justice League headquarters.
Original Air Date: 28 May 2005 To help her magic superhero friends, the God Hermes sends Wonder Woman on a mission to help free Hades from the clutches of Felix Faust.
Original Air Date: 4 June 2005 Seeking to avenge the death of her parents, the Huntress enlists the help of the Question in tracking down Steven Mandragora, a mobster in protective custody -- and being guarded by the Green Arrow and Black Canary.
Season 4, Episode 7: Clash
Original Air Date: 11 June 2005 Captain Marvel joins the Justice League and his innocent presence inadvertently causes friction with Superman.
Original Air Date: 18 June 2005 Shayera, Vixen and Vigilante are lured into an ambush by Thanagarians seeking revenge.
Original Air Date: 25 June 2005 The Question, fearing disaster, decides to kill Lex Luthor to avert it.
Season 4, Episode 10: Flashpoint
Original Air Date: 2 July 2005 Lex Luthor executes his masterstroke to eliminate Project Cadmus and frame the Justice League.
Original Air Date: 9 July 2005 While the senior Leaguers struggle to respond to the mysterious main gun firing, Amanda Waller orders Galatea to lead a full attack on the Justice League.
Original Air Date: 16 July 2005 The Justice League charter members must battle the combined Lex Luthor/Brainiac menace alone.
Season 4, Episode 13: Epilogue
Original Air Date: 23 July 2005 In the future, Terry McGinnis learns the truth about about his birth.
Original Air Date: 17 September 2005 The newly-escaped Lex Luthor is given a membership test for Gorilla Grodd's Legion of Doom.
Original Air Date: 17 September 2005 Shayera is approached by an archaeologist who is convinced that he is the reincarnated husband of a previous incarnation of herself.
Original Air Date: 24 September 2005 Green Lantern, Stargirl, S.T.R.I.P.E. and Supergirl are drawn to the subterranean world of Skartaris to assist the Warlord, Travis Morgan.
Original Air Date: 24 September 2005 Wonder Woman finds herself fighting a team from the Legion of Doom determined to steal the frozen body of the Viking Prince.
Original Air Date: 11 February 2006 A day in the life of Wally West aka The Flash. The day includes West at his day job, as a Criminal Lab tech, the dedication of the Flash Museum, and the attacks of four villians.
Original Air Date: 18 February 2006 Deadman calls on Superman, Batman and Wonder Woman to help him recover an orb containing the souls of a monastic order that was stolen by the Legion of Doom.
Original Air Date: 25 February 2006 The paranoid General Eiling turns himself into a superstrong brute to kill Superman and only seven non-powered soldiers of the JL can deny him victory.
Original Air Date: 4 March 2006 Lex Luthor and The Flash find they've accidentally exchanged personalities in each other's body.
Original Air Date: 13 February 2006 Roulette enlists the ladies of the JLU in her new & improved all-girl gladiatorial arena.
Original Air Date: 15 April 2006 On her 21st birthday, Supergirl is transported to the 31st century along with Green Lantern and Green Arrow, to help the "Legion of Super-Heroes" combat "The Fatal Five". However, according to future sources, it is a mission from which she does not return.
Original Air Date: 6 February 2006 Hawkman returns with Shadow Thief and discover the true nature of his relationship with Hawkgirl.
Season 5, Episode 12: Alive
Original Air Date: 6 May 2006 When Lex Luthor sends the Hall of Doom into outer space to find the remains of Brainiac, Grodd breaks free of his prison to lead a mutiny.
Season 5, Episode 13: Destroyer
Original Air Date: 13 May 2006 The resurrected Darkseid leads his force on an all out attack on Earth in revenge against Superman and the Justice League and the Legion of Doom must join forces to stop him.
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