Unholy Aliance:
The Mutants and Mumm-ra strike an aliance to defeat the ThunderCats.

Berbils:
(Jack M. Martin) The Berbils capture Lion-o and Snarf, and then release them. Lion-o makes friends with the Berbils, and saves the Berbils candy fruit. The Berbils then agree to help the Thundercats build the cats lair.

The Slaves of Catle Plunn-Darr:
The Mutants enslave the Brute Men in order to make them build Castle Plunn-Darr.

Trouble with Time:
Tygra, while searching for thundrilium deposits, stumbles upon the 'Cave of Time' and ages hundreds of years. The ThunderCats enlist the aid of Willa, queen of the Warrior maidens, to help Tygra.

Pumm-ra:
Mumm-Ra disguises himself as Pumm-Ra, a thunderan, to get inside Cat's Lair.

The Terror of Hammerhand:

The Tower of Traps:
(Jack M. Martin) Wileykat and Kit examin an old rober baron's castle, and Wileykat gets caught in one of the rober baron's traps, so its up to Lion-o and Wileykit to save him, and put an end to the rober baron's theiverie.

The Garden of Delights:
(Jack M. Martin) Mumm-ra gives Tygra an addicting fruit, that all most caused him to give Mumm-ra the sword of omens.

Mandora: Evil Chaser:

The Ghost Warrior:
Grune the destroyer, the ghost of a ThunderCat turned evil, is set loose and and vows to destroy the ThunderCats.

The Doom-Gaze:
Mumm-Ra summons Ta-She, keeper of the Doom Gaze, from her time warp prison to help him take over Third Earth.

Lord of the Snows:
The ThunderCats are running out of Thundrillium, their power source, and need to get the supply from a meteorite that crashes on Hook Mountain, home of Snow Man.

The Spaceship beneath the Sands:
The Mutants get Mumm-Ra to raise their spaceship from the Desert of Sinking Sands so they can retrieve their equipment to battle the ThunderCats.

The Time Capsule:

The Fires of Castle Plunn-Darr:
The Mutants build a machine that can toss fireballs and nearly destroy the Warrior Maidens' village.

All that Glitters:
(Jack M. Martin) Panthro seperates thundrillium from gold, which captures Cheetara's affections. The sword of omens is broken when Lion-o is tricked in to fighting Tygra, and Lion-o is ready to destroy himself to reforge the sword. The Flamer has need of the gold to rekindle his flame and reforge the sword. Fortunetly, Cheetara has saved enough gold to help the Flamer. Unfortunetly, he turns agaist the Thundercats. But they get the sword back.

Spitting Image:
Mumm-Ra creates clones of Panthro and turns them loose to destroy Third Earth.

In order to become the TRUE Lord of the ThunderCats, Lion-O must face all of the other ThunderCats without the Sword of Omens and with no help from anyone else.

Lion-O's annointment First Day: The Trial of Strength:
Lion-O must best Panthro in a test of strenght.

Lion-O's annointment Second Day: The Trial of Speed:
Lion-O must beat Cheetara in a race.

Lion-O's annointment Third Day: The Trial of Cunning:
Lion-O must outwit the Thunderkittens while beating them to the end of the course.

Lion-O's annointment Fourth Day: The Trial of Mind Power:
Lion-O must fend off Tygra's powerfull mind illusions and face his worst fear.

Lion-O's annointment Last Day: The Trial of Evil:
To end the trials, Lion-O has to defeat his worst enemy, Mumm-Ra.

Mongor:
The Thunderkittens accidentally release Mongor, a demon that feeds on fear.

Snarf takes up the Challange:

Mandora and the Pirates: Mandora gets captured by space pirates who cause a jail break and Lion-O has to help.

The Crystal Queen:
Tartara, the Crystal Queen, imprisons the Arrieta bird which enchants the Berbil's' harvests and Lion-O is determined to free it.

Safari Joe:
The ulimate big game hunter stalks the Thunder Cats, catching all of them but Lion-O who, with Jaga's help, outwits the hunter.

Return of the Driller:

Turmagar the Tuska: T
urmagar asks the ThunderCats to help the Tuskas defeat a mechanical monster that is attacking their village.

Sixth Sense:
An alien life form crashes on Third Earth. The ThunderCats must rescue it from the Mutants to save Cheetara, who can feel everything that happens to it because of her sixth sense.

Dr. Dometone:

The Astral Prison:

Queen of 8 legs:

Dimension Door:

The Rock Giant:
Mumm-ra Wakes the sleeping Rock Giant and sends it to attack Cat's Lair.

The Thunder Cutter:
Mumm-ra summons Hachiman, the Samuri, to fight Lion-O.

Mechanical Plague:
Mumm-ra summons all of the mechanical creatures that the ThunderCats have fought for a rematch.

Feliner- Part one:

Feliner- Part two:

Excaliber:
Mumm-ra disguises himself as King Arthur to get Excaliber from the Lady of the Lake. He then, still disguised, provokes Lion-O into a fight, knowing Exalibur can destroy the Sword of Omens. After a fierce battle, Excalibur destroys the Eye of ThundERA. But Merlin the Magician appears, forcing Mumm-ra to flee and restoring the Sword and Eye. He gives Excalibur to Lion-O who puts it back into the Lake where it belongs.

The Secret of the Ice King:
(John Paul France) In an avalanch at hook mountian the ice king is freed and freezes Snow Knight. Snow mehow escapes and inlists the aid of the thundercats.

Sword in a hole:
Capt. Shiner is hired by Mumm-Ra to capture the ThunderCats, which he does and the Sword of Omens is cast into a black hole.

The Wolfrat:

Good and Ugly:
(John Paul France) Two Alien ships land on 3rd earth. One has an ugly Alien in it, the other a Kind looking Robot. The robot tricks Liono in to thinking that the other ugly alien is evil, since the alien is very ugly Liono beleaves the robot and help captures the ugly alien. When the sword refuses to obey liono as he trys to capture the ugly alien Liono realizes that the ugly alien is not evil and that the robot is, so he destroys it.

Divide and Conquer:

The Micrits:

The Superpower Potion:
Vulture-man developes a Potion that gives him super powers and attacks the Thunder Cats.

The Evil harp of Charr-nin:

Tight Squeeze:

Monkian's Bargain:
(John Paul France) Monkian makes a deal with mummra, that if mummra gives him the magical spheres, he will use them to capture the cats for the Northern Hemsphere of 3rd earth. Monkian does this, then takes on Mummra for control of the whole planet. Mummra wins the fight and the spheres are broken freeing the cats.

Out of Sight:

Jackleman's Rebellion:

The Mountain:

Eye of the Beholder:

The Mumm-ra Berbil:

The Trouble with ThunderKittens:

Mumm-rana:
Mumm-rana, Mumm-ra's good counterpart, is taken over by Mumm-ra and forced to attack the Thunder Cats.

Trapped:

The Transfer:
(Beth Fuchs) The ThunderCats try to neutralize a space nuke, but Mumm-Ra and the Mutants snitch it from them. Jackalman steals the nuke for himself but in the process angers Mumm-Ra, who double-crosses him and the other Mutants when he steals it back. The ThunderCats and the Mutants gang up on Mumm-Ra to get at the nuke. Fortunately the ThunderCats end up the winners.

The Shifter:
Vulture-man creates a weapon that can shift personalities of two people and swaps Panthro and Snarf.

Dream Master:
Mumm-ra takes the form of the 'Dream Master' and captures the Thunder Cats' dream selves.

Fond Memories:

Thunder Cats HO!- part one:
(Jesse Morgan) In part one, Lion-O has a dream of when Thundera was being destroyed, and he sees three other Thunderians. He tells Jaga, but Jaga says it is too late to get them. Lion-O asks Cheetara to use her sixth sense to find them. She tells them that they are alive and on a tiny island on Third Earth. Mumm-Ra finds out about the Thunderians and tells Ma-Mutt (his pet mutt) to seek out the Berserkers. The ThunderCats go out to find them, but the Thunderians are captured by the Berserkers.

Thunder Cats HO!- part two:
(Jesse Morgan) Lion-O seeks the Thundercats while Snarf is captured by Ratar-O. In an effort to save him, Lion-O is dropped on Hook Mountain where he and Snowman battle the Mutants and their new weapon, The FistPounder. Meanwhile Mumm-Ra gets Captain Shiner to take the Thunderians to Fire Rock Mountain. The Thunderians try to escape only to be fooled by Captain Shiner.

Thunder Cats HO!- part three:
(Jesse Morgan) As Lion-O and Snowman battle the FistPounder, Panthro comes to the scene. They get into a fight between the FistPounder and the Thunder Tank. Ratar-O and the RatStar interfere by shooting down the Thunder Tank. Lion-O is found by Tygra and Cheetara and they split to find the Thunderians. The Thunderians are escorted to their cells by Jackleman and Monkian. Lion-O goes to the Black Pyramid in an effort to find out Mumm-Ra's plans.

Thunder Cats HO!- part four:
(Jesse Morgan) Lion-O escapes the Black Pyramid and heads for Fire Rock Mountain. Panthro is stuck under the Thunder Tank and is freed by Cheetara, Tygra, and Snowman. They all head for Fire Rock Mountain. Snarf gets the help of Turmagar and the Tuskas to crash the RatStar and to stop the Berserkers from trying to recapture the Thunderians. Mumm-Ra gets Hachiman to battle Lion-O at Fire Rock Mountain. The Thunderians escape from their cell.

Thunder Cats HO!- part five:
(Jesse Morgan) Lion-O and Hachiman battle it out and Lion-O convinces him he is being tricked by Mumm-Ra. Cheetara and Tygra stop Captain Shiner from going to Fire Rock Mountain. Panthro battles Monkian and the FistPounder. The Thunderkittens fight the Berserkers. They all head to Fire Rock Mountain where Mumm-Ra shows up. Jaga goes to get the Star of Thundera and has to fight Grune the Destroyer to get it. He gives the Star to Lion-O so he won't be affected by the Thundranium. The Thunderians battle the Mutants and escape. Mumm-Ra gets the Star of Thundera only to be so-called destroyed by it. Lion-O annoints the New Thundercats; Lynx-O, the blind lynx, Pumyra, the swift puma, and Bengali, the white tiger.

Mumm-ra Lives- part one:

Mumm-ra Lives- part two:

Mumm-ra Lives- part three:

Mumm-ra Lives- part four:

Mumm-ra Lives- part five:

Cat Fight:
Mumm-ra disguises himself as Jaga and tells Lion-O that the 'New' Thunder Cats aren't to be trusted.

Psych Out:
Mumm-ra tells Alluro where to find the Igora talisman, an object which gives its owner supreme self-confidence to the point of invinsibility.

The Mask of Gorgon:
Mumm-Ra finds the Mask of Gorgon, a weapon that can turn flesh to stone...and stone to flesh!

The Mad Bubbler:
(Jack M. Martin) Cheetara, Tygra, and Panthro have been gased and told destroy or be destroyed. and they fight. Snarf and Snarfer save them because the gas does not affect them.

Together We Stand:
Mumm-ra coats the Berserkers weapons with thundranium and tells them to capture the Tower of Omens.

Ravage Island:
Mumm-ra uses the beacon of Ravage Island to draw the Thunder Cats to him. The light from the beacon put the Thunder Cats under a trance and causes them to believe whatever they are told. Lynx-O, who can't see the light, and Snarf and Snarfer, strong willed snarfs (don't ask me), rescue the other Thunder Cats and destroy the beacon.

Time Switch:
While moving an old suspension capsule, it falls, releasing strange gasses wich cause Lion-O to age in reverse. He is captured by the Lunataks and then rescued. The other Thunder Cats take him to the 'Cave of Time' where he is restored to his previous age.

The Sound Stones:
Vultureman steals one of the Legendary Sound Stones of Darkside and builds the ultimate sonic weapon.

Day of the Eclipse:
Third Earth has a solar eclipse once every 100 years, and todays the day! Any spell cast on that day will last until the next eclipse and Mumm-ra casts a spell of decay on all the ThunderCats' things. The Lair crumbling around them, the ThunderTank out of control, the ThunderCats have entered Mumm-ra's 'Day of Decay.'

Side Swipe:
Officer Mandora must chase Chilla into Darkside and needs Lynx-O's help to do it. But the Lunatacs plan to capture Lynx-O's brail board and design a defense to keep the ThunderCats out of Darkside.

Mumm-rana's Belt:
Mumm-rana is the guardian of the magic belt that Luna's grandmother used to terrorize Third Earth. Luna decides to get it back and make sure Mumm-rana, the only person on Third Earth powerfull enough to stop the belt, can't try to interfere.

Hachiman's Honour:
The Lunatacs steal Hachiman's sword, the legendary ThunderCutter, and build a robot to wield it against the Sword of Omens.

Runaways:
Wilykit and Wilykat runaway and meet a new friend whose image Mumm-Ra uses to get into Cats' Lair.

Hair of the Dog:
The ThunderCats leave on a mission, leaving Lion-O and Snarf to guard the Lair. Mumm-Ra captures Snarf and exchanges Ma-mutt's shape with Snarf's in order to sneak into Cats' Lair.

Vultureman's Revenge:
Vultureman builds a thundranium cannon and plans to defeat the ThunderCats.

Thundercubs! part one:

Thundercubs! part two:

Thundercubs! part three:

Thundercubs! part four:

Thundercubs! part five:

The Totem of Dera:
Mumm-Ra finds the Totem of Dera, a part of the treasure of Thundera, which has great magical healing powers and the ability to give life to inanimate objects. Vulture-man builds a device that will allow them to create monsters to destroy the ThunderCats.

The Chain of Loyalty:
(John Paul France) Jaga informs Loino of the Chain and him and the thundercats go to New Thundera to get it. Mummra arrives and gets it first, in a fight with Mummra the Chain is Broken and the cats fight among themselves. Liono is unaffected for he has the sword. In the end he uses the sword to reform the chain.

Crystal Canyon:
(Daniel Weksler) Tigra finds a crystal which gives him great power, but he becomes dependant on it. He becomes more arrogant and looks weaker. Aulirro steals the diamond and captures Lynx-O and Lion-O, and when Lion-O does his famous call, Tigra becomes strong again.

Telepathy Beam:
Vulture-man and Alluro create a Telepathy Beam to take over Panthro's mind and force him to build engines to take Sky Tomb to New Thundera to search for the Treasure of Thundera. The beam has the added affect of confusing Cheetara's sixth sence, causing her to see things that aren't real.

Exile Island:
(John Paul France) Thundercats capture all the Lunitacs and put them in exile on a distent planet where they meet Captain Craker. Using a fog machine, the Lunitacs and Craker cause a ship to crash on the planet and use its engines to propell the planet to 3rd Earth. The Cats detect a moving planet and send Snarfer to investigate for he is coming back from NEW Thundera, his ship crashes, Liono arrives to the seen in the Hover Cat and battles the Lunitacs using common items for he left his sword back in the Lair, so it would not be destroyed, just in case.

Key of Thundera:
(John Paul France) While on an expadion to New Thundera, Tigera and Panthro find the key of thundera. Mean while on 3rd earth, Liono is trying to desifer the book of omens, he decides to use the sword to help him and the sword sends a beam in to the book, whih pulls Liono in trapping him inside the book. Out of no where a voice says do you have the key of thundera for with out it you will never learn its secrets and Mummra arrives to the layer and captures the book, the cats get it back.

Return of the Thundercubs:
Mumm-ra finds out that if he gives Cheetara a piece of the casket that the treasure of Thundera was kept in, she can use her sixth sense to find the treasure. While looking for the treasure on New Thundera, Mumm-ra creates a whirlwind that drops Cheetara, Panthro, and Tygra into the Valley of Youth, making them young again. He then disquises himself as Lion-O to convince the Thundercubs to look for the treasure.

The Formula:
Alluro designs a formula that he thinks will enable Skytomb to travel to New Thundera. Unfortunately, it doesn't work as it was intended. The formula can make plants and animals grow to enormous sizes. The Lunatacs get the Mutants to spray the area around Cats' Lair with it, hoping that the Thundercats will be destroyed by the creatures and plants.

Locket of Lies:
Mumm-ra creates a locket to lure the Thundercats into a trap. He then lets the Snarfs find it, knowing they will think it is a part of the Treasure of Thundera and will call the Thundercats.

Bracelet of Power:
On another expedition to find the Treasure of Thundera, the Thundercats find a bracelet. Unknown by them, the bracelet gives the wearer complete control over the Thundercats, and Mumm-Ra decides to steal it.

Wild Workout:
Lion-O, Panthro, and Snarf travel to the Caverns of Cold on New Thundera to find some of the Treasure. Mumm-Ra sets a trap for them using special crystals which will freeze the Thundercats solid. Meanwhile, the Lunatacs capture the other Thundercats back on Third Earth and force them to 'workout' on machines to provide power for Skytomb.

Thunderscope:
Lion-O and Snarf find the legendary Thunderscope which can find lost Thundercats and thier possessions. Mumm-ra plans to steal it so he can find the treasure of thundera first.

The Jade Dragon:

The Circus Train:

The Last Day:
(Beth Fuchs)The Ancient Spirits of Evil get mad at Mumm-Ra and order him to wipe out the ThunderCats before sundown or the Spirits will wipe HIM out. They solidify the threat by making an example of Ma-Mutt. Mumm-Ra turns into his "super-ego" and starts trashing Third Earth. Tygra and Cheetara are the first to get zapped, then when Lion-O and Panthro show up Mumm-Ra nails Panthro and buries Lion-O alive in molten lava. Then Mumm-Ra wastes the Tower of Omens and zaps the Thunderkittens. Jaga helps Lion-O escape while Snarf enters the Book of Omens to find out how they can stick it to Mumm-Ra. Lion-O and Mumm-Ra square off against each other and Snarf tells Lion-O if he can hold out until sundown Mumm-Ra gets whacked. Of course Mumm-Ra screws up and gets stuck in exile, and the ThunderCats are freed from limbo to return to Thundera.

Return to Thundera part one:

Return to Thundera part two:

Return to Thundera part three:

Return to Thundera part four:

Return to Thundera part five:

Leah:

Frogman:

The Heritage:

Srew Loose:

Malcar:

Helpless Laughter:

Cracker's Revenge:

The Mossland Monster:

Ma-mutt's Confusion:

The Shadowmaster:

Swan Song:

The Touch of Amorus:

The Zaxx Factor:
(Beth Fuchs)Vultureman escapes from exile on Wayoutback Island via a hijacked bookmobile. En route to New Thundera, he discovers a legend concerning Mumm-Ra and a being called Zaxx. These two were ancient enemies duking it out over Third Earth, and Mumm-Ra was the victor. He destroyed Zaxx by robbing him of the Rosencrantz Medallion, a magical amulet with strong powers. Vultureman gets so greedy, he decides to ambush Mumm-Ra and get the medallion for himself. Along the way, he loses Panthro and Snarf in the Churning Rocks as they try to stop him. When Mumm-Ra finds out about Vultureman's scheme, he tells Vultureman an important part of the legend: whoever wears it loses his own life and becomes Zaxx! The ThunderCats get caught in the crossfire as Mumm-Ra successfully defeats Zaxx a second time.

Well of Doubt:

Book of Omens:
(Beth Fuchs)The ThunderCats are told by the Guardian of the Book of Omens to perform a ritual presentation of sacred Thunderian objects or else New Thundera will be destroyed by its natural phenomena. Sneaky Mumm-Ra steals the Book and the Key and ticks off the Ancient Spirits of Evil when he refuses to destroy the objects, instead entering the Book himself. Lion-O tracks him down and gets in the Book via the Sword. He and Mumm-Ra are ordered to fight each other unarmed by the Guardian for control of the Key, and the fates of the other ThunderCats. Lion-O pounds Mumm-Ra and the Ancient Spirits of Evil send their champion to kick Lion-O's butt. Lion-O fries the champion and frees the ThunderCats who then present their artifacts and save New Thundera from destruction.