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X-Men: Animated Series
Night of the Sentinels, Part 1 - S01/E01
Summary: The X-Men connect a mutant registration program, with ties to the government and to a group of mutant-capturing robots called Sentinels. They rescue a teenage mutant girl named Jubilee from the program while visiting a mall. They decide to bring her back to the mansion where she finds they are not just normal mutants, they are the X-Men. -

X-Men: Animated Series
Night of the Sentinels, Part 2 - S01/E02
Summary: The X-Men break into the Mutant Registration Office and destroy the files, but Beast is apprehended while trying to escape. Gyrich and Trask, the renegades responsible for the Sentinels, kidnap Jubilee, hoping she can lead them to the X-Men. -

X-Men: Animated Series
Captive Hearts - S01/E05
Summary: Wolverine must overcome his feelings for Jean, and Storm must overcome her crippling claustrophobia, when the team journeys into the sewer to rescue Jean Grey & Cyclops from a race of hideously deformed mutants known as Morlocks, and their leader Callisto, who wants to make Scott her king. -

X-Men: Animated Series
Cold Vengeance - S01/E06
Summary: Having left the X-Men to seek peace in the arctic, Wolverine instead finds himself battling Sabretooth for the safety of an Inuit tribe. Storm, Gambit, and Jubilee investigate an island resort which welcomes mutants, and might be too good to be true. -

X-Men: Animated Series
Slave Island - S01/E07
Summary: Gambit, Storm, and Jubilee become slave labor on the island resort of Genosha, along with other mutants, forced to help build the new power source for a Sentinel factory. They're given aide in escaping by a mysterious mercenary named Cable. -

X-Men: Animated Series
The Cure - S02/E09
Summary: A Doctor at the Muir Island Mutant Research Center claims to have found a cure for the mutant gene. Rogue flies to the island seeking the 'cure', which turns out to be a plot by the villainous Apocalypse to turn mutants into his evil servants. -

X-Men: Animated Series
Come to Apocalypse - S01/E10
Summary: The immortal mutant Apocalypse terrorizes the world with his Horsemen--mutants who journeyed to Muir Island seeking the fictitious cure, but instead became the living embodiments of Famine, Pestilence, War, andDeath. Can the X-Men stop them from carrying out Apocalypse's plan to annihilate all humankind? -

X-Men: Animated Series
Days of Future Past, Part 1 - S01/E11
Summary: A mutant from more than half a century into the future, named Bishop, arrives in the present, attempting to change history for the better, by stopping an X-Man from committing an assassination. But between being chased by a future breed of Sentinel, and the details of his mission being fuzzy, he's got his work cut out for him. -

X-Men: Animated Series
Days of Future Past, Part 2 - S01/12
Summary: Aware of an impending assassination which will create a catastrophic future, the X-Men must deal with threats both outside and within their team. Bishop identifies the traitor -- the mysterious Cajun Gambit! Can the X-Men stop Bishop from destroying Gambit before the assassination can take place? Should they? -

X-Men: Animated Series
The Final Decision - S01/E13
Summary: Recovering from their initial battle with the X-Men, Gyrich and Trask have resumed Project Wideawake by creating the ultimate Sentinel: the Master Mold, a walking factory capable of creating Sentinel robots at an assembly-line pace. The X-Men must join with their oldest nemesis, Magneto, to destroy the Master Mold and prevent the extermination of all mutantkind. -

X-Men: Animated Series
Til Death Do Us Part, Part 1 - S02/E01
Summary: As Jean and Cyclops attempt to tie the knot, Mr. Sinister lays traps to destroy the X-Men one by one. Sinister's agent of destruction is none other than poor, tormented Morph who has his own bone to pick with the X-Men. -

X-Men: Animated Series
Til Death Do Us Part, Part 2 - S02/E02
Summary: As Morph's seeking of revenge on the X-Men begins to run into some snags, Cyclops & Jean Grey get their Honeymoon cut short by the machinations of Mister Sinister and the Nasty Boys. Mr. Sinister's efforts to destroy the X-Men appear to be working as he and Morph turn the superheroes against each other. Even Professor X and Magneto foolishly fall into a Sinister trap. -

X-Men: Animated Series
Red Dawn - S02/E04
Summary: Omega Red, the ultimate living weapon, is resuscitated by three corrupt generals who want to reclaim and rule the crumbling old Soviet empire. Colossus, with the help of the X-Men, fights to save his country and its fragile freedom from these forces of tyranny. -

X-Men: Animated Series
Repo Man - S02/E05
Summary: Vindicator and the Canadian Alpha Flight capture Wolverine. They demand some return on their investment: either he joins their team as originally planned or they repossess his indestructible, adamantium skeleton. -

X-Men: Animated Series
X-Ternally Yours - S02/E06
Summary: An ancient tithe and an age old family feud force Gambit to return to his Southern roots where the woman he jilted at the altar waits to enact some sweet revenge. Gambit must come face to face with the past he's been running from for years, as he returns tries to save his brother from Belladonna. -

X-Men: Animated Series
Time Fugitives, Part 1 - S02/E07
Summary: Once again, Bishop, an upstart mutant from the 21st century must travel back to the present day to help the X-Men fight a plague that threatens to consume all mutant kind. This time trying to stop a plague from infecting mutants. But his noble actions lead to a far greater tragedy. -

X-Men: Animated Series
Time Fugitives, Part 2 - S02/E08
Summary: As human mutant relations worsen and the plague rages uncontrollably, Cable, another time traveler, takes matters into his own bionic hand to set the present straight and save his own future world. To stablize his own timeline, Cable comes to the present to prevent Bishop from saving mutant-kind from Apocalypse's plague. -

X-Men: Animated Series
Rogue's Tale - S02/E09
Summary: Haunted by visions of a strange woman, Rogue must come to grips with the dark secrets of her past prior to joining the X-Men. When Mystique, Rogue's foster mother, forces her to revisit her own past, Rogue's overpowering flashbacks drive her from the X-Men and into the waiting arms of Ms. Marvel, Rogue's first enemy. On a psychic plane, an avenging Ms. Marvel and an apologetic Rogue battle it out. -

X-Men: Animated Series
Mojovision - S02/E11
Summary: An alien, Mojo, who owns a intergalactic television network, decides to kidnap and cast the X-Men as his latest all-galaxy television hit to boost ratings and keep his people in line. -

X-Men: Animated Series
Reunion, Part 1 - S02/E12
Summary: Beast falls in love with his patient, a blind woman named Carly, and though the feelings are mutual, her mutant-hating father and anti-mutant sentiment drives a wedge between the pair. Meanwhile, Wolverine seeks to take down the Friends of Humanity from the inside out. -

X-Men: Animated Series
Reunion, Part 2 - S02/E13
Summary: -

X-Men: Animated Series
Out of the Past, Part 1 - S03/E01
Summary: Wolverine's former love, a Japanese woman named Yuriko, believes Wolverine caused her father's death. She has turned herself into a living weapon, the cyborg Lady Deathstrike, and has come to America to seek revenge. Deathstrike lures Wolverine and the X-Men into the Morlock tunnels where she hopes that a stunning, alien discovery may be the secret to her destroying the man she once loved so deeply. -

X-Men: Animated Series
Out of the Past, Part 2 - S03/E02
Summary: Yuriko's alien discovery--a Shi'ar vessel--turns out to be a prison cell containing a voracious, gaseous prisoner, the M'Kraan Spirit Drinker. It immediately attacks Wolverine, Deathstrike and her cohorts, the Reavers, throwing them together to struggle against it. When the Spirit Drinker absorbs Jubilee's spirit, will Wolverine be able to overcome the alien creature or will he join Jubilee, locked inside it forever? -

X-Men: Animated Series
Phoenix Saga, Part 1 - S03/E03
Summary: Shi'ar emissary Eric the Red commandeers the Eagle One space station, so his emperor D'Ken can launch a surprise attack on the one person who stands between him and the all-powerful M'Kraan crystal, his sister Lilandra. Will the X-Men stop D'Ken and his mission before he brings an interstellar war to the earth's doorstep? And who can withstand re-entry in order to safely land the shuttle now that the auto pilot is damaged? -

X-Men: Animated Series
Phoenix Saga, Part 2 - S03/E04
Summary: Jean Grey pilots the shuttle, but her psycho-kinetic shield fails her. When she calls out for help, the mysterious, amorphous Phoenix force takes over. Even after the shuttle is safe, Jean can neither remember her ordeal, nor can she shake the feeling she is not herself. Meanwhile Professor X also undergoes an alarming transformation. He retreats to Ireland to rest... until two surprise visitors appear. Or is he imagining things? -

X-Men: Animated Series
Phoenix Saga, Part 3 - S03/E05
Summary: At great personal risk, Lilandra comes to Professor X's aid in Ireland. Lilandra again pleads with Professor X for assistance in the M'Kraan matter. As Jean struggles against the Phoenix energies, the other X-Men worry that the professor has lost his mind--especially now that he insists his mysterious 'friend' Lilandra, who no one else has ever seen, has been inexplicably kidnapped. -

X-Men: Animated Series
Phoenix Saga, Part 4 - S03/E06
Summary: Jean loses her identity to the Phoenix spirit as the battle for the M'Kraan crystal approaches. The amazingly powerful Jean/Phoenix transports all the X-Men to Lilandra's ship where the empress has hidden the crystal. But D'Ken is waiting and so is another band of would-be crystal thieves... Corsair, Raza, Hepzibah and Ch'od. The battle to save the crystal and the universe as we know it gets more hopeless by the minute. -

X-Men: Animated Series
Phoenix Saga, Part 5 - S03/E07
Summary: Shi'ar Emperor D'Ken's rise to power via the M'Kraan Crystal is causing a universal implosion. The X-Men, Imperial Guard, and Starjammers find themselves overpowered and unable to stop it. Jean Grey must unleash her destiny as the host of the Phoenix, even at a most personal cost. -

X-Men: Animated Series
No Mutant Is An Island - S03/E08
Summary: Cyclops, still in mourning after Phoenix's death, quits the X-Men and returns to the orphanage he grew up in and encounters his friend Sarah. Cyclops suspects foul play of Zebediah Killgrave, Sarah's wealthy benefactor as he begins to adopt mutant children for an unknown purpose. (Due to animation problems, this episode was first broadcast as part of the fifth season.) -

X-Men: Animated Series
Obsession - S03/E09
Summary: Warren Worthington has become obsessed with destroying Apocalypse, who he blames for ruining his life, after turning him into the Horseman known as Archangel. -

X-Men: Animated Series
Dark Phoenix, Part 1 - S03/E14
Summary: The Phoenix continues to inhabit Jean's body, brazenly taking over at will. As a chanteuse named Dazzler flirts with Scott, Jean/Phoenix finds herself psychically seduced by Jason Wyngarde, with help from Emma Frost and the other mutants in the Inner Circle Club. Wyngarde weaves a new history for the confused Jean/Phoenix, creating a passionate romance between himself and her. When the X-Men come to rescue Jean, they find her fighting alongside Wyngarde -- her fiance. -

X-Men: Animated Series
Dark Phoenix, Part 2 - S03/E15
Summary: As Professor X and Emma Frost battle for psychic control of Jean, the Inner Circle members quarrel over how to dispose of their prisoners the X-Men. Is Jean and Scott's psychic connection gone forever? Or is she strong enough to overcome Phoenix's influence and Wyngarde's trickery to remember who she is...or at least was? -

X-Men: Animated Series
Dark Phoenix, Part 3 - S03/E16
Summary: When the X-Men confront Phoenix to give up Jean's body, Phoenix vows to destroy the team. To re-energize, she flies up through the D'Bari Star System, passing a very surprised Shi'ar Star Cruiser crew. As they watch in horror, she feeds upon and destroys an entire star system. To defend space life as they know it, the Shi'ar empress Lilandra decrees Phoenix/Jean Gray must die. -

X-Men: Animated Series
Dark Phoenix, Part 4 - S03/E17
Summary: The X-Men battle Lilandra's Imperial Guards for 'custody' of Phoenix/Jean Gray. Although Xavier and Lilandra wish they could settle amicably, they are set on opposite courses. When Phoenix falls in battle, Xavier startles everyone by commanding the X-Men to stop Phoenix now, while she is vulnerable. -

X-Men: Animated Series
Juggernaut Returns - S03/E19
Summary: Professor Xavier's step-brother, and sworn enemy, the Juggernaut loses his powers to a bumbling archeologist. He must overcome the pain of their childhood together, and have the powers restored to him to save his life. -

X-Men: Animated Series
Sanctuary, Part 1 - S03/E21
Summary: Magneto builds a home strictly for mutants on the orbiting base known as Asteroid M. The message goes out worldwide of initial exodus, and he finds just as many eager to join him, as those anxious to destroy him. -

X-Men: Animated Series
Sanctuary, Part 2 - S03/E22
Summary: With Magneto seemingly dead, Fabian Cortez takes over Asteroid M, and initiates a nuclear war with Earth. The X-Men attempt to sabotage his warhead stockpile, and rescue Gambit, finding assistance in the most unlikely of places. -

X-Men: Animated Series
Xavier Remembers - S03/E23
Summary: When Professor X suffers a slight concussion, his powerful psychic mind is suddenly open to manipulation. The Shadow King takes advantage of this and takes possession of Xavier, leaving his mind trapped on the Astral Plane. -

X-Men: Animated Series
Nightcrawler - S04/E01
Summary: While vacationing in Europe, Wolverine, Gambit, and Rogue hear of a local legend about a blue-skinned demon terrorizing an isolated town. They investigate, and not only discover that the demon is actually a mutant called Nightcrawler, but the nature of faith in the face of adversary. -

X-Men: Animated Series
One Man's Worth, Part 1 - S04/E02
Summary: Bishop & Shard recruit Wolverine & Storm for a time travel mission to save Professor Xavier's life. Except they\'re from the parallel timeline where he died before founding the X-Men, a world where humans and mutants are in a constant war with one another. Not only do the pair lack a connection to him, but correcting history may put an end to their marriage. -

X-Men: Animated Series
Have Yourself a Morlock Little X-Mas - S04/E10
Summary: Jubilee's first Christmas with the X-Men doesn't go exactly as she expected, when she, Storm, and Wolverine become involved with a mission to save the Morlock child known as Leech. -

X-Men: Animated Series
Beyond Good and Evil, Part 1 - S04/E11
Summary: Apocalypse steals Cable's computer in the year 3999, allowing him to time travel to the past, where he schemes to bring an end to his struggle against inferior mutants once and for all. This leads to Bishop becoming trapped amid the timestream, and brings ruin to the second wedding attempt by Cyclops and Jean Grey. -

X-Men: Animated Series
Beyond Good and Evil, Part 3 - S04/E13
Summary: After swiping the government's own time machine, Cable ends up recruiting the X-Men on his mission to destroy Apocalypse's source of immortality at its creation. -

X-Men: Animated Series
Beyond Good and Evil, Part 4 - S04/E14
Summary: Two of Apocalypse's former evil allies, the captive Wolverine, the loose cannon Cable, and the exiled Bishop, come together to free the kidnapped psychics and save reality from being rewritten. -

X-Men: Animated Series
Love in Vain - S04/E15
Summary: Rogue's childhood sweetheart, the boy whom she put into a coma when her powers first manifested, returns to her life unexpectedly. But what strange connection does he have with the bug-like aliens Wolverine encounters in the desert? -

X-Men: Animated Series
Phalanx Covenant, Part 2 - S05/E02
Summary: Snatched from the jaws of the Phalanx by the villainous Mr. Sinister, Beast and Forge search for allies to help them battle the alien threat. Gathering assistance from such unlikely sources as Magneto and Sinister himself, they embark upon a daring and risky plan to free the planet from the clutches of the Phalanx by traveling straight into the belly of the beast. -

X-Men: Animated Series
Jubilee's Fairy Tale Theater - S05/E06
Summary: Jubilee leads a group of school children on tour of a cave on Mansion property, only to be caught in a cave-in. As the water in the cave rises, she keeps the kids calm by spinning a Medieval fairy tale of knights, princesses, trolls and dragons. some of these characters might just seem to resemble the X-Men. -

X-Men: Animated Series
Hidden Agenda - S05/E08
Summary: Beast reads about Cannonball in Philologist's Quarterly, recognizing him as a mutant. When the army learns of Sam Guthrie's cannonball power, they try to enlist him in their ranks. -

X-Men: Animated Series
Graduation Day - S05/E10
Summary: Due to a serious injury, Professor Xavier is dying and must leave with Lilandra and go with her to the Shi'Ar Empire. He bids farewell to his X-Men. The last scene of this show ends with all of the X-Men standing outside the mansion watching Lilandra's ship carrying Xavier flying away. -

Spider-Man: Animated Series
Mutant Agenda - S02/E04
Summary: Spider-Man begins to worry about his growing mutation. In order to seek a cure, he heads to the Xavier mansion, where he encounters the X-Men. A brief fight occurs, after which Spider-Man explains his plight to Xavier. Professor X tells Spider-Man that he cannot cure him, and he angrily leaves the mansion. Beast tells Spider-Man to go to Herbert Landon, who is working on a cure for mutants. -

X-Men: Animated Series
Mutant Revenge - S05/E05
Summary: Wolverine catches up with Spider-Man, who is hot on the trail of the missing Hank McCoy. Meanwhile, Hobgoblin steals the mutant technology that Dr. Landon had prepared for the Kingpin. -

Fantastic Four: Animated Series
Day of Reckoning, Part 1 - S02/E09
Summary: On a night with Alicia, Ben fights the Hulk until Alicia asks him to stop. Dr. Doom takes the opportunity to trick the Hulk into crushing the Fantastic Four until Alicia divulges Dr. Doom's hidden lies. -

X-Men: Evolution
Day of Reckoning, Part 1 - S02/E16
Summary: Wolverine suddenly vanishes, as the Brotherhood members team up with the X-Men to defeat Magneto. They take off to fight him, leaving behind the new recruits. As soon as the ships take off, the institute goes into self-destruct mode. Before it can close off the doors, Amara gets out and is narrowly saved by Tabitha from the institute's weapons. They find Scott, who stayed behind because he felt too angry to stay with the team, and enter the mansion to help the others out. But as they reach the control room, the clock is counting down from 10 seconds. -

X-Men: Evolution
Day of Reckoning, Part 2 - S02/E17
Summary: The Brotherhood/X-Men arrive where Magneto is with his new allies, but Quicksilver suddenly reveals he is part of Magneto's team. The others begin to battle the allies, but without warning, Magneto caves in the ground, and a mega-robot sentinel is released. The government agents with the sentinel trap a few members of the team, and the remaining retreat back to the destructed institute. Scott and the other students explain how they escaped then Scott suddenly accuses the Professor of setting it up. Professor X suddenly morphs into Mystique, shocking them all. -

X-Men: Evolution
Stuff of Villians - S03/E04
Summary: Wanda goes searching for Pietro; she finds him at a diner and proceeds to get him arrested in the assumption that Magneto will come bail him out. Meanwhile, the Brotherhood are expelled from school, much to Lance's disgust. Also, Gambit shows up at school, with the sole purpose of getting the Brotherhood to join Magneto and bust Pietro out. -

X-Men: Evolution
Under Lock and Key - S03/E09
Summary: Mesmero mentally controls Gambit into stealing half of the Spider Stone from Angel and is then captured by Magneto. Magneto finds out about the three keys that can free Apocalypse and tracks an escaping Mesmero to London. Angel goes to the X-Men for help and they pick up the trail to London as well. The two teams fight but Magneto finds and joins the two halves, which create a energy-spider. The X-Men set out to capture it while Magneto's team try to destroy it, weakening it down long enough for Magneto to eradicate it. Xavier reveals that Mesmero intended Magneto to destroy it all along - the spider was a guardian. Now the teams must find Mesmero before he acquires the third key and finally frees Apocalypse. -

X-Men: Evolution
Dark Horizons, Part 1 - S03/E12
Summary: As Jeanīs and Scottīs graduation day approaches, Rogue suddenly begins acting strangely. After crossing Magneto, the X-Men and Acolytes team up to stop the coming of Apocylapse. -

X-Men: Evolution
Dark Horizons, Part 2 - S03/E13
Summary: As all the monsters in tomb attack, the teammates try to oppose them with full strength. Finally, Magneto opens a door in which a device working on cerebro technology is placed. Charles tries to operate; Meanwhile, Logan, Sabertooth, and Gambit track Mesmero and Rogue along with Mystique. When she touches the sign of Apocalypse, she turns into stone. Gambit breaks open the door of the cave, and all three try to defeat Mesmero. He manages to fight with them till Rogue reaches the final tomb and opens it. As Logan and Sabertooth defeat the Mesmero, his mental hold on Rogue gets released. Before she realizes Apocalypse holds her hand and absorbs all powers in her. As the teleport ship of team reaches in mountains of Tibet where Apocalypse lies, all of them see him coming out of the open door. Everyone gets prepared to fight and defeat him, but only with a single blast, he knocks them down. He goes to the ship and vanishes with it. Now the only link to him is Mesmero. -

X-Men: Evolution
Impact - S04/E01
Summary: Magneto ruthlessly hunts Apocalypse, but the X-Men aren't so eager. When nothing can be done about Mystique, the professor gives her to the Brotherhood. Much to Rogue's objection, Kurt brings it back. When the two fight, Kurt sees a tear. Jean discovers Apocalypse in Mexico, and the professor, Cyclops, Jean, Shadowcat, Beast, & Wolverine go to investigate. They try to be peaceful, but Magneto attacks. Apocalypse defeats him with ease, and appears to kill him. Back in Bayville, Kurt has Wanda contact Agatha. Rogue finds the two meeting, and Agatha tells her that she's the only one who can save her mother. Kurt begs her to do the right thing, but Rogue knocks the statue off the cliff. It shatters before Kurt can teleport down to it, and Rogue just walks away. -

X-Men: Evolution
Cajun Spice - S04/E06
Summary: Gambit kidnaps Rogue and tells her he is trying to help her to forget what she did to Mystique. When everyone notice she is missing, Wolverine sense Gambitīs smell and goes to Magnetoīs base where he find Pyro and tells him the Acolytes are separated and he does not know where Gambit is. Gambit takes Rogue to city where a couple of criminals reconcile him and attack them both. Rogue touches the leader of them and discovers Gambitīs foster father is being hold in an old house near the swamp. They go there and Rogue accidentally touches Gambit and learns he is using her to get there. Gambit decided to go alone but Rogue comes back to help him and rescue his father and take on the Rippers. Wolverine and the rest of the X-Men arrive and take Rogue with them while Gambit decides to quit that lifestyle for good. -

Wolverine and the X-Men
Thieves' Gambit - S01/E05
Summary: Gambit is hired to steal a inhibition collar from the X-Men. Wolverine catches up with the Cajun mutant and conviences him what he has done is the wrong thing. Together they go after the woman that hired him to get the collar back before it is wrongfully used against other mutants. -

Wolverine and the X-Men
Aces and Eights - S01/E22
Summary: Gambit arrives on Genosha under the orders of Senator Kelly to steal Magneto's helmet as a provocation of war. Much to the dismay of the Scarlet Witch, Gambit charms Polaris, who unknowingly aids him in his task. Through the intervention of the X-Men, Magneto and Senator Kelly reach an understanding about their impending war. -

- Episode order, especially in the original X-Men: Animated Series, may be different than seen on dvds and streaming services. Episodes were originally shown randomly due to animation delays and printing errors.