Episode 1
Exodus
With their home planet, Thundera, about to explode, the Thunderians flee to a distant galaxy. Before they can...
Episode 2
The Unholy Alliance
The Mutants, who have also reached Third Earth, encounter an old pyramid. It turns out to be the home of Mumm-...
Episode 3
Berbils
The Ro-Bear Berbils are a friendly group of robot bears that live on Third Earth. Lion-O and Snarf don't know...
Episode 4
The Slaves of Castle Plun-Darr
The homeless Mutants also make plans to build their home. They enslave a primitive race of beings called Brute...
Episode 5
Pumm-Ra
Mumm-Ra uses his shapeshifting abilities to pass himself off as a Thunderian so he can stage the "rescue" of C...
Episode 6
The Terror of Hammerhand
When Snarf and a young unicorn are captured by the pirate Hammerhand and his crew of Berserkers, Lion-O goes t...
Episode 7
Trouble with Time
With their supply of Thundrillium running low, the Thundercats set off in search of a fresh supply. Tygra dete...
Episode 8
The Tower of Traps
Wilykit and Wilykat try to stop a band of living gargoyles from robbing a Wollo but fail to do so and trail th...
Episode 9
The Garden of Delights
While investigating an earthquake, Tygra stumbles across the Garden of Delights and meets a talking plant name...
Episode 10
Mandora: the Evil Chaser
Lion-O and Snarf stumble upon a portable jail cell, and mistakenly open it up. Three of the galaxy's worst vil...
Episode 11
The Ghost Warrior
Two Bolkins (sheep-like beings from Third Earth) unleash the ghost of Grune the Destroyer, a renegade Thunderc...
Episode 12
The Doomgaze
Mumm-Ra and the Mutants plot to open the Time Warp Prison and release the evil Princess Ta-She in order to use...
Episode 13
Lord of the Snows
When a meteorite made of pure Thundrillium crashes on Hook Mountain, the Thundercats decide to use it to reple...
Episode 14
The Spaceship Beneath the Sands
Tired of constantly being bested by the Thundercats, the Mutants have Mumm-Ra raise their spaceship and salvag...
Episode 15
The Time Capsule
Lion-O becomes homesick, and his memories of Thundera are almost nonexistent. Jaga appears to Lion-O and tells...
Episode 16
The Fireballs of Plun-Darr
The Mutants, once again searching for a way to destroy the Thundercats, recover some more items from their spa...
Episode 17
All That Glitters
Mumm-Ra tricks Lion-O into using the Sword of Omens against Tygra, causing the blade to break in half and lose...
Episode 18
Spitting Image
Mumm-Ra creates device that can make Panthro clones. He embeds the spirit of Hammerhand into his clone and set...
Episode 19
Mongor
Wilykit and Kat accidentally free an ancient monster that was banished to an old shrine centuries ago. The evi...
Episode 20
Return to Thundera
The Thundercats briefly show Lion-O how the time capsule they recovered from the caveman works. Curious to see...
Episode 21
Dr. Dometone
An old scientist seeks the Thundercats to help him save the oceans of Third Earth. Long ago, a crack was made...
Episode 22
The Astral Prison
Jaga is captured by Nemex, an evil being in the Astral World, and Lion-O tries to find a way to rescue him. Th...
Episode 23
The Crystal Queen
The Thundercats think that Snarf is getting too old, and that he is not up to doing as much as he does. To pro...
Episode 24
Safari Joe
An evil hunter lands on third earth in search of prey to hunt. His holographic machine can tell him about all...
Episode 25
Snarf Takes Up the Challenge
Nearly all the Thundercats have been captured by the Mutants and imprisoned in Mumm-Ra's Pyramid, forcing Snar...
Episode 26
Sixth Sense
An alien spaceship crash lands on third earth, and it can somehow communicate with Cheetara through her sixth...
Episode 27
The Thunder-Cutter
Mumm-Ra summons the great samurai Hachiman to seek and destroy Lion-O. He tells Hachiman that Lion-O and the...
Episode 28
The Wolfrat
Mumm-Ra has a phial of miniaturization gas. Vultureman builds a mechanical Wolfrat to infiltrate the gas into...
Episode 29
Feliner (1)
Vultureman summons Ratar-O to take him to the planet of the Snarfs to capture one of them and use it as ransom...
Episode 30
Feliner (2)
The ThunderCats race to try to salvage the part they need for the Feliner from the wreck of the Rat Star befor...
Episode 31
Mandora and the Pirates
Mandora, on space-patrol, encounters an old pirate ship which doesn't meet inter-galactic standards. She boar...
Episode 32
Return of the Driller
The Driller, Mumm-Ra's servant who captured Panthro for him in Spitting Image, returns to aid Mumm-Ra once aga...
Episode 33
Dimension Doom
Wiz-Ra, Mumm-Ra's enemy from long ago, comes back every 7000 years through a portal that just happens to be in...
Episode 34
Queen of 8 Legs
Mumm-Ra finds out that the Kingdom of Webs has a new Queen, Spidera. Mumm-Ra thinks he can lure Lion-O into h...
Episode 35
Sword in a Hole
Mumm-Ra hires Captain Shiner to send a fake distress signal to the ThunderCats. With their new vehicle, the F...
Episode 36
The Evil Harp of Charr-Nin
Wilykit and Kat find an ancient harp that has a genie in it. His name is Charr-Nin. Mumm-Ra appears to the ge...
Episode 37
Lion-O's Anointment First Day: Trial of Strength
On Lion-O's 20th birthday, he must pass a set of trials to become the true Lord of the ThunderCats. Even thoug...
Episode 38
The Demolisher
A vagabond space traveler lands on Third Earth to challenge Mumm-Ra to a fight. The Demolisher is victorious...
Episode 39
Monkian's Bargain
Monkian goes to Mumm-Ra and agrees to give him anything if Mumm-Ra will make him powerful enough to rule Third...
Episode 40
Tight Squeeze
After the Mutants fail to ambush and defeat the Thundercats with Vultureman's new Thundrainium cannon, Vulture...
Episode 41
The Micrits
Micrits, a tiny race of human-like figures, happen to live right outside Cats' Lair. Unaware of their existen...
Episode 42
Lion-O's Anointment Second Day: The Trial of Speed
On the second day of his trials, Lion-O must race Cheetara through the dangerous lands of Third Earth. Althoug...
Episode 43
The Rock Giant
Mumm-Ra awakens the Rock Giant, an ancient monster made of stone which looked like a mountain to the TCats. Wh...
Episode 44
Jackalman's Rebellion
The normally submissive JackalMan decides to start his own army in hopes of conquering Third Earth by himself....
Episode 45
Turmagar the Tuska
An evil robot monster is attacking the Tuska Village, in an area unexplored by the Thundercats. Turmagar, the...
Episode 46
Lion-O's Anointment Third Day: Trial of Cunning
Wily Kit and Kat stand in Lion-O's way on the third day of his trials. Lion-O must beat them through the maze...
Episode 47
The Mumm-Ra Berbil
Mumm-ra transforms himself into a ro-bear berbil (a Thundercat ally). He acts hurt and the Thundercats let him...
Episode 48
Mechanical Plague
Panthro invents flying video cameras which are suppose to record the events that take place on third-earth so...
Episode 49
Trapped
When a big storm hits Third Earth, the Thunderkittens are trapped in an old space capsule. Meanwhile, Tygra an...
Episode 50
Lion-O's Anointment Fourth Day: The Trial of Mind Power
Lion-O undergoes the fourth task in his Anointment Trial.
Episode 51
Excalibur
The story of Excalibur, the greatest sword in history, is revealed to Mumm-Ra, who is then determined to find...
Episode 52
Secret of the Ice King
A giant Ice King is accidentally released from his glacial prison and attacks the Castle of the Snowmen.
Episode 53
Good and Ugly
A Terator Starship, an extremely ugly spaceship, is pursued by a Kymera Craft, a visually appealing spaceship....
Episode 54
The Transfer
A spaceship freighted with a lethal radioactive sphere is on a collision course for Third Earth.
Episode 55
Divide and Conquer
Vultureman invents a voice imitator that imitates the ThunderCats' voices. He uses it to lure the ThunderCats...
Episode 56
Dream Master
Mumm-Ra transforms into Mumm-Ra the Dream Master and summons spectral Dream Selves from the sleeping Panthro,...
Episode 57
Out of Sight
Willa is practicing her long-bow skills when a warning device alerts her to a Mutant attack. Willa is captured...
Episode 58
The Mountain
Mumm-Ra summons the Mutants and threatens to banish them from Third Earth unless they bring him the Sword of O...
Episode 59
The Superpower Potion
Vultureman invents a Super Power Potion which give him magical powers, enabling him to mesmerize and defeat Ty...
Episode 60
Eye of the Beholder
Jackalman ambushes Snarf and attempts to steal the Sword of Omens. This gives Panthro the idea to make a dupli...
Episode 61
Lion-O's Anointment Final Day: The Trial of Evil
The concluding trial in Lion-O's Anointment Trials pits him alone and weaponless against the evil Mumm-Ra.
Episode 62
The Trouble with ThunderKittens
To prove themselves worthy of being ThunderCats, the ThunderKittens borrow the other ThunderCats' weapons and...
Episode 63
Mumm-Rana
The Feliner is attacked by the RatStar, manned by the Mutants. Jackalman, Monikan, and S-S-Slithe are ejected...
Episode 64
The Shifter
Vultureman invents the Shifter, a device that can switch personalities, and uses it on Panthro's personality a...
Episode 65
Fond Memories
Mumm-Ra creates a museum where painting and statues come alive to oppose the ThunderCats.