ThunderCats: Season 1
Episodes
Exodus
Jan 23, 1985 · 22 min
With their home planet, Thundera, about to explode, the Thunderians flee to a distant galaxy. Before they can make the long journey the Mutants sweep in and destroy most of the fle
The Unholy Alliance
Jan 23, 1985 · 22 min
The Mutants, who have also reached Third Earth, encounter an old pyramid. It turns out to be the home of Mumm-Ra the Ever-Living, and they join forces to capture the Sword of Omens
Berbils
Sep 11, 1985 · 22 min
The Ro-Bear Berbils are a friendly group of robot bears that live on Third Earth. Lion-O and Snarf don't know this, and end up getting caught in a Ro-Bear trap. The Berbils free th
The Slaves of Castle Plun-Darr
Sep 12, 1985 · 22 min
The homeless Mutants also make plans to build their home. They enslave a primitive race of beings called Brute-Men to do their work for them. The Thundercats go to Castle Plunn-Dar
Pumm-Ra
Sep 13, 1985 · 22 min
Mumm-Ra uses his shapeshifting abilities to pass himself off as a Thunderian so he can stage the "rescue" of Cheetara and infiltrate Cats' Lair.
The Terror of Hammerhand
Sep 16, 1985 · 22 min
When Snarf and a young unicorn are captured by the pirate Hammerhand and his crew of Berserkers, Lion-O goes to rescue them.
Trouble with Time
Sep 17, 1985 · 22 min
With their supply of Thundrillium running low, the Thundercats set off in search of a fresh supply. Tygra detects a large deposit in a cave and goes to investigate - unfortunately,
The Tower of Traps
Sep 18, 1985 · 22 min
Wilykit and Wilykat try to stop a band of living gargoyles from robbing a Wollo but fail to do so and trail the gargoyles to a nearby Tower. Wilykat is trying force the door open w
The Garden of Delights
Sep 19, 1985 · 22 min
While investigating an earthquake, Tygra stumbles across the Garden of Delights and meets a talking plant named Silky, who offers him her fruit. But it turns out that "Silky" is an
Mandora: the Evil Chaser
Sep 20, 1985 · 22 min
Lion-O and Snarf stumble upon a portable jail cell, and mistakenly open it up. Three of the galaxy's worst villains escape. One of them, a slick thief, manages to steal Lion-O's sw
The Ghost Warrior
Sep 23, 1985 · 22 min
Two Bolkins (sheep-like beings from Third Earth) unleash the ghost of Grune the Destroyer, a renegade Thundercat who once terrorised Third Earth and now turns his attention to the
The Doomgaze
Sep 24, 1985 · 22 min
Mumm-Ra and the Mutants plot to open the Time Warp Prison and release the evil Princess Ta-She in order to use her deadly Doomgaze against the Thundercats.
Lord of the Snows
Sep 25, 1985 · 22 min
When a meteorite made of pure Thundrillium crashes on Hook Mountain, the Thundercats decide to use it to replenish their depleted energy supply. But Lion-O must first gain the trus
The Spaceship Beneath the Sands
Sep 26, 1985 · 22 min
Tired of constantly being bested by the Thundercats, the Mutants have Mumm-Ra raise their spaceship and salvage their vehicles.
The Time Capsule
Sep 27, 1985 · 22 min
Lion-O becomes homesick, and his memories of Thundera are almost nonexistent. Jaga appears to Lion-O and tells him that on their spaceship, they brought with them a time capsule wh
The Fireballs of Plun-Darr
Sep 30, 1985 · 22 min
The Mutants, once again searching for a way to destroy the Thundercats, recover some more items from their spaceship. They take their ship's engine and convert it into a giant fire
All That Glitters
Oct 1, 1985 · 22 min
Mumm-Ra tricks Lion-O into using the Sword of Omens against Tygra, causing the blade to break in half and lose its powers. The only way Lion-O can restore the Sword is to venture i
Spitting Image
Oct 2, 1985 · 22 min
Mumm-Ra creates device that can make Panthro clones. He embeds the spirit of Hammerhand into his clone and sets it free to destroy Third Earth. The Third Earth inhabitants blame th
Mongor
Oct 3, 1985 · 22 min
Wilykit and Kat accidentally free an ancient monster that was banished to an old shrine centuries ago. The evil monster, Mongor, begins to destroy the planet, and is much stronger
Return to Thundera
Oct 4, 1985 · 22 min
The Thundercats briefly show Lion-O how the time capsule they recovered from the caveman works. Curious to see more, Lion-O activates it during his night-time watch, and gets caugh
Dr. Dometone
Oct 7, 1985 · 22 min
An old scientist seeks the Thundercats to help him save the oceans of Third Earth. Long ago, a crack was made in the bottom of the ocean which caused the water to drain into the ea
The Astral Prison
Oct 8, 1985 · 22 min
Jaga is captured by Nemex, an evil being in the Astral World, and Lion-O tries to find a way to rescue him. Third Earth legend says that the only person who can transport anyone to
The Crystal Queen
Oct 9, 1985 · 22 min
The Thundercats think that Snarf is getting too old, and that he is not up to doing as much as he does. To prove them wrong, Snarf saves the Thundercats from another mess. The evil
Safari Joe
Oct 10, 1985 · 22 min
An evil hunter lands on third earth in search of prey to hunt. His holographic machine can tell him about all of the Thundercats, including their strengths and weaknesses, and he i
Snarf Takes Up the Challenge
Oct 11, 1985 · 22 min
Nearly all the Thundercats have been captured by the Mutants and imprisoned in Mumm-Ra's Pyramid, forcing Snarf to use his own talents to free them.
Sixth Sense
Oct 28, 1985 · 22 min
An alien spaceship crash lands on third earth, and it can somehow communicate with Cheetara through her sixth sense. She becomes a part of the spacecraft, and begins to feel what i
The Thunder-Cutter
Oct 29, 1985 · 22 min
Mumm-Ra summons the great samurai Hachiman to seek and destroy Lion-O. He tells Hachiman that Lion-O and the Thundercats are destroying his planet. Hachiman and Lion-O confront ea
The Wolfrat
Oct 30, 1985 · 22 min
Mumm-Ra has a phial of miniaturization gas. Vultureman builds a mechanical Wolfrat to infiltrate the gas into the Cats' Lair. The ThunderCats are immediately reduced to nine inches
Feliner (1)
Oct 31, 1985 · 22 min
Vultureman summons Ratar-O to take him to the planet of the Snarfs to capture one of them and use it as ransom with the Thundercats. Snarf, thinking his entire race was wiped out
Feliner (2)
Nov 1, 1985 · 22 min
The ThunderCats race to try to salvage the part they need for the Feliner from the wreck of the Rat Star before the Mutants can complete repairs. Snarf contemplates leaving the Thu
Mandora and the Pirates
Nov 4, 1985 · 22 min
Mandora, on space-patrol, encounters an old pirate ship which doesn't meet inter-galactic standards. She boards the ship, arrests the pirate, and sends the ship to a space prison.
Return of the Driller
Nov 5, 1985 · 22 min
The Driller, Mumm-Ra's servant who captured Panthro for him in Spitting Image, returns to aid Mumm-Ra once again. His job this time is to drill a hole from the Cats' Lair to the Ac
Dimension Doom
Nov 6, 1985 · 22 min
Wiz-Ra, Mumm-Ra's enemy from long ago, comes back every 7000 years through a portal that just happens to be in Cheetara's bedroom. Wiz-Ra wears a magical helmet that lets him cont
Queen of 8 Legs
Nov 7, 1985 · 22 min
Mumm-Ra finds out that the Kingdom of Webs has a new Queen, Spidera. Mumm-Ra thinks he can lure Lion-O into her lair. He transforms into a diamond fairy and casts a spell on Lion
Sword in a Hole
Nov 8, 1985 · 22 min
Mumm-Ra hires Captain Shiner to send a fake distress signal to the ThunderCats. With their new vehicle, the Feliner, the ThunderCats set out into deep space to help the "ship in d
The Evil Harp of Charr-Nin
Nov 11, 1985 · 22 min
Wilykit and Kat find an ancient harp that has a genie in it. His name is Charr-Nin. Mumm-Ra appears to the genie and tells him that if he destroys the Thundercats, he will be free
Lion-O's Anointment First Day: Trial of Strength
Nov 12, 1985 · 22 min
On Lion-O's 20th birthday, he must pass a set of trials to become the true Lord of the ThunderCats. Even though he is the hereditary Lord of the ThunderCats, he must prove himself
The Demolisher
Nov 13, 1985 · 22 min
A vagabond space traveler lands on Third Earth to challenge Mumm-Ra to a fight. The Demolisher is victorious against Mumm-Ra and sends him running back to his tomb. Mumm-Ra ackno
Monkian's Bargain
Nov 14, 1985 · 22 min
Monkian goes to Mumm-Ra and agrees to give him anything if Mumm-Ra will make him powerful enough to rule Third Earth. Mumm-Ra agrees, and gives him Power Spheres which make him su
Tight Squeeze
Nov 15, 1985 · 22 min
After the Mutants fail to ambush and defeat the Thundercats with Vultureman's new Thundrainium cannon, Vultureman, furious about the failed attempt and the loss of his weapon, acti
The Micrits
Nov 18, 1985 · 22 min
Micrits, a tiny race of human-like figures, happen to live right outside Cats' Lair. Unaware of their existence, Lion-O manages to continuously step on their village and destroy t
Lion-O's Anointment Second Day: The Trial of Speed
Nov 19, 1985 · 22 min
On the second day of his trials, Lion-O must race Cheetara through the dangerous lands of Third Earth. Although Cheetara is by far the fastest among the Thundercats, her speed can
The Rock Giant
Nov 20, 1985 · 22 min
Mumm-Ra awakens the Rock Giant, an ancient monster made of stone which looked like a mountain to the TCats. When it wakes up, Mumm-Ra sends it to destroy Cats Lair. The TCats try a
Jackalman's Rebellion
Nov 21, 1985 · 22 min
The normally submissive JackalMan decides to start his own army in hopes of conquering Third Earth by himself. He does manage to give the Thundercats trouble, but soon he is defeat
Turmagar the Tuska
Nov 22, 1985 · 22 min
An evil robot monster is attacking the Tuska Village, in an area unexplored by the Thundercats. Turmagar, the leader of the Tuskas, travels to the Cat's Lair to ask for aid in defe
Lion-O's Anointment Third Day: Trial of Cunning
Nov 25, 1985 · 22 min
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 of infinity. Attempting to stop Lion-O and slow him down, the kids set
The Mumm-Ra Berbil
Nov 26, 1985 · 22 min
Mumm-ra transforms himself into a ro-bear berbil (a Thundercat ally). He acts hurt and the Thundercats let him stay at Cats Lair. One night, Mumm-ra(the berbil) puts all the Thunde
Mechanical Plague
Nov 27, 1985 · 22 min
Panthro invents flying video cameras which are suppose to record the events that take place on third-earth so they could create their own holographic time capsule. Mumm-Ra, in hope
Trapped
Nov 28, 1985 · 22 min
When a big storm hits Third Earth, the Thunderkittens are trapped in an old space capsule. Meanwhile, Tygra and Cheetra almost crash the Feliner, but Lion-O guides them in for a sa
Lion-O's Anointment Fourth Day: The Trial of Mind Power
Nov 29, 1985 · 22 min
Lion-O undergoes the fourth task in his Anointment Trial.
Excalibur
Dec 2, 1985 · 22 min
The story of Excalibur, the greatest sword in history, is revealed to Mumm-Ra, who is then determined to find the Excalibur and defeat Lion-O and the Sword of Omens.
Secret of the Ice King
Dec 3, 1985 · 22 min
A giant Ice King is accidentally released from his glacial prison and attacks the Castle of the Snowmen.
Good and Ugly
Dec 4, 1985 · 22 min
A Terator Starship, an extremely ugly spaceship, is pursued by a Kymera Craft, a visually appealing spaceship. The Terator Spaceship escapes and lands at the Cats' Lair
The Transfer
Dec 5, 1985 · 22 min
A spaceship freighted with a lethal radioactive sphere is on a collision course for Third Earth.
Divide and Conquer
Dec 6, 1985 · 22 min
Vultureman invents a voice imitator that imitates the ThunderCats' voices. He uses it to lure the ThunderCats into perilous situations.
Dream Master
Dec 9, 1985 · 22 min
Mumm-Ra transforms into Mumm-Ra the Dream Master and summons spectral Dream Selves from the sleeping Panthro, Cheetara, Tygra, Wilykat, and Wilykit.
Out of Sight
Dec 10, 1985 · 22 min
Willa is practicing her long-bow skills when a warning device alerts her to a Mutant attack. Willa is captured and the ThunderCats rush to rescue her.
The Mountain
Dec 11, 1985 · 22 min
Mumm-Ra summons the Mutants and threatens to banish them from Third Earth unless they bring him the Sword of Omens.
The Superpower Potion
Dec 12, 1985 · 22 min
Vultureman invents a Super Power Potion which give him magical powers, enabling him to mesmerize and defeat Tygra.
Eye of the Beholder
Dec 13, 1985 · 22 min
Jackalman ambushes Snarf and attempts to steal the Sword of Omens. This gives Panthro the idea to make a duplicate sword as bait for the Mutants.
Lion-O's Anointment Final Day: The Trial of Evil
Dec 16, 1985 · 22 min
The concluding trial in Lion-O's Anointment Trials pits him alone and weaponless against the evil Mumm-Ra.
The Trouble with ThunderKittens
Dec 17, 1985 · 22 min
To prove themselves worthy of being ThunderCats, the ThunderKittens borrow the other ThunderCats' weapons and practice with them. They are ambushed by Mutants, who take their weapo
Mumm-Rana
Dec 18, 1985 · 22 min
The Feliner is attacked by the RatStar, manned by the Mutants. Jackalman, Monikan, and S-S-Slithe are ejected and saved by Mumm-Rana, a female mirror image of Mumm-Ra, who is a for
The Shifter
Dec 19, 1985 · 22 min
Vultureman invents the Shifter, a device that can switch personalities, and uses it on Panthro's personality and Snarf's body.
Fond Memories
Dec 20, 1985 · 22 min
Mumm-Ra creates a museum where painting and statues come alive to oppose the ThunderCats.