Episodes
Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the mysterious world of Third Earth ...read more Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the mysterious world of Third Earth along with their enemies, the Mutants of Plun-Darr. show less
Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the mysterious world of Third Earth ...read more Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the mysterious world of Third Earth along with their enemies, the Mutants of Plun-Darr. show less
Lion-O gets hold of the last jar of Thundersnaps, the best cookies Thundera had to offer; a difficult-to-open cookie jar sends ...read more Lion-O gets hold of the last jar of Thundersnaps, the best cookies Thundera had to offer; a difficult-to-open cookie jar sends Lion-O and Cheetara chasing down a legend. show less
Lion-O wants to prove to the ThunderKittens that he's not just some boring old adult like Tygra, even if it means ignoring ...read more Lion-O wants to prove to the ThunderKittens that he's not just some boring old adult like Tygra, even if it means ignoring his instincts and messing with an obviously evil crystal. show less
Panthro is getting a little fed up with having to fix things around the Cats' Lair constantly, which is unfortunate because ...read more Panthro is getting a little fed up with having to fix things around the Cats' Lair constantly, which is unfortunate because the ThunderCats are about to be attacked by an unstoppable drilling robot, and he's gonna break everything! show less
A crying unicorn appears at the Cats' Lair and weepily tells the ThunderCats that all of her unicorn friends have been ...read more A crying unicorn appears at the Cats' Lair and weepily tells the ThunderCats that all of her unicorn friends have been captured! Tygra thinks he's just the unicorn expert to help the last of the unicorns, he just needs her to stop sobbing long enough to tell him who took her friends. Easier said than done. show less
Vultureman has got a brand new invention but there's one big problem: he stole the idea from Panthro! Oh, also Vultureman is ...read more Vultureman has got a brand new invention but there's one big problem: he stole the idea from Panthro! Oh, also Vultureman is using his invention to take over Third Earth. So, there are two big problems show less
Third Earth is being overrun by super tough, super buff Warrior Maidens and it looks like the ThunderCats are next on their hit ...read more Third Earth is being overrun by super tough, super buff Warrior Maidens and it looks like the ThunderCats are next on their hit list! It's gonna be up to the ThunderKittens to save the day even though the kittens are so small and the Warrior Maidens are so big. show less
Lion-O is reminded that he needs to plug the Sword of Omens into the Cats' Lair each night or else the base will run out of ...read more Lion-O is reminded that he needs to plug the Sword of Omens into the Cats' Lair each night or else the base will run out of power. That's fine, it's not like Lion-O's going to accidentally lose the sword or anything. Right? show less
Tygra takes Lion-O climbing up the peak of Hook Mountain to teach him a lesson about trust. But when they get trapped by a ...read more Tygra takes Lion-O climbing up the peak of Hook Mountain to teach him a lesson about trust. But when they get trapped by a snowstorm and take refuge in a creepy cabin owned by the creepy Snowman - it's Tygra's ability to the trust that's gonna be tested. show less
Tygra's feeling unappreciated by the other ThunderCats so he starts hanging out with Mumm-Ra and cleaning his Black ...read more Tygra's feeling unappreciated by the other ThunderCats so he starts hanging out with Mumm-Ra and cleaning his Black Pyramid?! Whaaaaaaat? show less
After losing a race to Monkian over who gets to be leader of a local village, Cheetara becomes a successful business person. ...read more After losing a race to Monkian over who gets to be leader of a local village, Cheetara becomes a successful business person. However, the other Thundercats discover Monkian cheated by drinking a super-speed potion. Now, with the help of Cheetara's biggest fan, Jan-Jan, they need to dethrone Monkian from his seat of power. show less
Lion-O "accidentally" releases a whole space prison full of criminals and winds up on the wrong side of the law.
Lion-O is tasked with mapping the beaches of Third Earth, which leads to him somehow draining the oceans of all their water ...read more Lion-O is tasked with mapping the beaches of Third Earth, which leads to him somehow draining the oceans of all their water entirely. show less
Lion-O never pays attention during Tygra's training sessions! So when he's asked to do a pop quiz on "sword ...read more Lion-O never pays attention during Tygra's training sessions! So when he's asked to do a pop quiz on "sword magic", he accidentally opens a portal to the Astral Plane and releases the Nether Witch on Third Earth. show less
Every time Mumm-Ra gets ahold of a magic artifact to restore his powers, the ThunderCats just smash it and turn him into a dinky ...read more Every time Mumm-Ra gets ahold of a magic artifact to restore his powers, the ThunderCats just smash it and turn him into a dinky skeleton again. Until today that is, because Mumm-Ra just remembered he's got the Ancient Spirits of Evil on his side. show less
When the Cats' Lair is attacked by gold-loving robot pirates, Lion-O and the ThunderKittens ditch their chores to fight the ...read more When the Cats' Lair is attacked by gold-loving robot pirates, Lion-O and the ThunderKittens ditch their chores to fight the robo-pirates. show less
Jaga, the ghost of the ThunderCats' mentor, visits the Cats' Lair after being freed from the Astral Plane and explains ...read more Jaga, the ghost of the ThunderCats' mentor, visits the Cats' Lair after being freed from the Astral Plane and explains why their home world of Thundera exploded. show less
While flying with his new invention, Panthro hits it off with new friend Barbastella, the Queen of the Bats.
After a battle with the Mutants, Jackalman gets confused and accidentally returns to the Cats' Lair with the Thundercats.
The ThunderCats have gotten so good at defeating the Mutants of Plun-Darr that it's basically become routine. That all ...read more The ThunderCats have gotten so good at defeating the Mutants of Plun-Darr that it's basically become routine. That all changes with the arrival of the Mutants' old leader: Ratar-O, wielder of the Sword of Plun-Darr! Uh-oh! show less
Lion-O is happily playing with Snarf in their "Frolicking Field" and doesn't have a care in the world, unfortunately ...read more Lion-O is happily playing with Snarf in their "Frolicking Field" and doesn't have a care in the world, unfortunately he's accidentally stomping all over the miniature village of the Micrits! The tiny people want to defeat the "giant orange monster" but such a quest would require a brave hero. Luckily, the Micrits have such a hero: Prince Starling! Now, let us the tell you the epic tale of Prince Starling as he journeys to find the fountain of growth and defeat the wicked Lion-O, who has no idea any of this is going on! show less
Lion-O and the other ThunderCats are thrilled to meet a brand new Thunderian: Lion-S! She's cool, good at fighting robots ...read more Lion-O and the other ThunderCats are thrilled to meet a brand new Thunderian: Lion-S! She's cool, good at fighting robots and, most importantly, thinks Lion-O and his Sword of Omens are really neat and interesting! Looks like the ThunderCats have a new best friend! Maybe even, a new ThunderCat????? show less
Snarf leaves the Cats' Lair to get a needed vacation by transforming into a normal cat and hanging out with a nice old lady ...read more Snarf leaves the Cats' Lair to get a needed vacation by transforming into a normal cat and hanging out with a nice old lady on a farm! But his relaxing day is threatened. show less
The Thundercats' worst nightmare comes true when their worst enemies, Mumm-Ra and The Mutants, team up after Mumm-Ra ...read more The Thundercats' worst nightmare comes true when their worst enemies, Mumm-Ra and The Mutants, team up after Mumm-Ra acquires The Sword of Plun-Darr! show less
Chaos reigns over Third Earth now that the Mutants and Mumm-Ra control the Cats' Lair! The Thundercats' only hope is to ...read more Chaos reigns over Third Earth now that the Mutants and Mumm-Ra control the Cats' Lair! The Thundercats' only hope is to sneak back in and get a super secret weapon Panthro has hidden at the heart of the Lair. show less
While on a super important mission to get batteries for the TV remote Lion-O meets Hachiman, a cool Samurai warrior. Now Lion-O ...read more While on a super important mission to get batteries for the TV remote Lion-O meets Hachiman, a cool Samurai warrior. Now Lion-O will do anything to prove he's just as cool as Hachiman, even if it means risking his own life! show less
The ThunderKittens plug a new video game cartridge into Snarf only to learn that, instead of loading a game, it loaded a whole ...read more The ThunderKittens plug a new video game cartridge into Snarf only to learn that, instead of loading a game, it loaded a whole new personality into their pal. show less
The ThunderCats finally sit the Berbils down and tell them they shouldn't be building things for the Mutants anymore; ...read more The ThunderCats finally sit the Berbils down and tell them they shouldn't be building things for the Mutants anymore; it's time for the Berbils to stand up for themselves. show less
Mumm-Ra plans to disguise himself as a Thunderian and infiltrate Cats' Lair, but the Ancient Spirits of Evil are mad at him ...read more Mumm-Ra plans to disguise himself as a Thunderian and infiltrate Cats' Lair, but the Ancient Spirits of Evil are mad at him and won't give him any magic today. No matter, Mumm-Ra knows what a ThunderCat looks like so he slaps on some awful, unconvincing, cat make up and heads to Cats' Lair to introduce himself! show less
Panthro gets insecure when he finds out Barbastella has a history of dating royalty, so he tries to impress her by becoming King ...read more Panthro gets insecure when he finds out Barbastella has a history of dating royalty, so he tries to impress her by becoming King of the Machines and giving all the appliances in the Cats' Lair artificial intelligence. show less
When a local sword shop sells an ultra powerful sword to Ratar-O, Lion-O decides he has to steal it before Ratar-O can come pick ...read more When a local sword shop sells an ultra powerful sword to Ratar-O, Lion-O decides he has to steal it before Ratar-O can come pick it up; unfortunately, Lion-O is against stealing. show less
Lion-O's dad King Claudus arrives on Third Earth, and turns out to be a big selfish jerk! Now Lion-O has to deal with his ...read more Lion-O's dad King Claudus arrives on Third Earth, and turns out to be a big selfish jerk! Now Lion-O has to deal with his dad before he goes to war with the rest of the Thundercats. show less
In order to save the Berbils, Cheetara uses her psychic powers to project a telethon into the brains of everyone on Third Earth.
Mumm-Ra builds a mall that's actually a giant labyrinth designed to trap the Thundercats forever. Too bad the Thundercats ...read more Mumm-Ra builds a mall that's actually a giant labyrinth designed to trap the Thundercats forever. Too bad the Thundercats love the mall so much they could literally spend all eternity there. show less
Third Earth's sun is being blocked out by the Eclipsor Corporation, an amoral company that wants to sell its energy for a ...read more Third Earth's sun is being blocked out by the Eclipsor Corporation, an amoral company that wants to sell its energy for a profit. The ThunderCats can't do anything about it because they don't have a spaceship, yet! show less
The ThunderCats freak out when a spooky ghost dressed like a pharaoh appears in their mirrors! They quickly set about to getting ...read more The ThunderCats freak out when a spooky ghost dressed like a pharaoh appears in their mirrors! They quickly set about to getting rid of every reflective surface in their lair, because that ghost is scary and no one wants to talk to him! show less
The Thundercats agree to foster a demonic puppy from the Astral Plane until they can find it the perfect owner. But could the ...read more The Thundercats agree to foster a demonic puppy from the Astral Plane until they can find it the perfect owner. But could the perfect owner be their worst enemy? Their worst enemy is Mumm-Ra in case you forgot! show less
The Thunderkittens unleash a demon who is powered by fear. Too bad he's small and not that scary.
The Thundercats invite a super cool swamp man into the Cat's Lair who is on the run from some scary looking aliens!
Tygra says he's done being a Thundercat after he gets engaged to a sentient flower. Now it's up to Lion-O to break up ...read more Tygra says he's done being a Thundercat after he gets engaged to a sentient flower. Now it's up to Lion-O to break up the wedding! show less
The new rulers of Plun-Darr say they'll bring one of the Mutants home; whichever one of them activates a homing beacon that ...read more The new rulers of Plun-Darr say they'll bring one of the Mutants home; whichever one of them activates a homing beacon that will blow up the Thundercats. Now it's every Mutant for themselves as they battle it out to be the one to activate the beacon! show less
The Mutants refuse to celebrate their favorite holiday, Plunds-Mas, now that Plun-Darr is gone. So now it's up to the ...read more The Mutants refuse to celebrate their favorite holiday, Plunds-Mas, now that Plun-Darr is gone. So now it's up to the Thundercats to raise their spirits by enacting the eight horrors of Plunds-Mas! show less
Mumm-Ra, the Ever-Living decides he'll nap for a thousand years, till the Thundercats are long gone. But when he wakes up, ...read more Mumm-Ra, the Ever-Living decides he'll nap for a thousand years, till the Thundercats are long gone. But when he wakes up, he's shocked to discover that Third Earth is even more in love with them than ever. show less
The ThunderCats face the greatest threat of their lives: Grune the Destroyer! He's the ghost of an evil ThunderCat and he ...read more The ThunderCats face the greatest threat of their lives: Grune the Destroyer! He's the ghost of an evil ThunderCat and he wants revenge! How are They Gonna Beat Grune??? You'll have to watch the episode! show less