S01E01 Exodus (1)
Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the world of Third Earth. But their enemies, the Mutants of Plun-Darr have followed them and it turns out Third Earth...
ThunderCats Roar
S01E07: Panthro Plagiarized!
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.
Overview
Lion-O and the ThunderCats — Tygra, Panthro, Cheetara, Wilykat and Wilykit — barely escape the sudden destruction of their home world, Thundera, only to crash land on the mysterious and exotic planet of Third Earth. Lion-O, the newly appointed Lord of the ThunderCats, attempts to lead the team as they make this planet their new home. A bizarre host of creatures and villains stand in their way, including the evil Mumm-Ra, Third Earth’s wicked ruler who will let nothing, including the ThunderCats, stop his tyrannical reign over the planet.
Episodes
S01E02 Exodus (2)
Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the mysterious, dangerous, all-around awesome world of Third Earth! But their enemies, the Mutants of Plun-Darr have followed them and it...
S01E03 The Legend of Boggy Ben
Lion-O has gotten ahold of the last jar of Thundersnaps - the best cookies Thundera had to offer! But a difficult to open cookie jar sends Lion-O and Cheetara chasing down the legend of Boggy...
S01E04 Prank Call
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.
S01E05 Driller
Panthro becomes fed up with having to constantly fix things around the Cats' Lair, which proves to be a problem when an unstoppable drilling robot plans an attack.
S01E06 Secret of the Unicorn
A crying unicorn appears at the Cats' Lair and 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.
S01E07 Panthro Plagiarized!
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...
S01E08 Warrior Maiden Invasion
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...
S01E09 Lost Sword
Barely escaping the sudden destruction of their home world, Thundera, Lion-O and the ThunderCats crash land on the mysterious and exotic planet of Third Earth, home to the evil Mumm-Ra and a bizarre host of...
S01E10 The Horror Of Hook Mountain
Barely escaping the sudden destruction of their home world, Thundera, Lion-O and the ThunderCats crash land on the mysterious and exotic planet of Third Earth, home to the evil Mumm-Ra and a bizarre host of...
S01E11 ThunderSlobs
Feeling underappreciated by the other ThunderCats, Tygra starts hanging out with Mumm-Ra and cleaning his black pyramid. Whaaaat?
S01E12 Working Grrrl
Cheetara is the fastest living being in the universe, until Monkian beats her in a race! Now Cheetara has to find something else to be the best at, while the rest of the ThunderCats find...
S01E13 Mandora: The Evil Chaser
Lion-O "accidentally" releases a whole space prison-full of space criminals and winds up on the wrong side of the law. On the right side of the law is Mandora the Evil Chaser, a no nonsense...
S01E14 Dr. Dometone
Lion-O is tasked with mapping the beaches of Third Earth, which leads to him somehow draining the oceans of all water entirely. Woops. But a mysterious scientist with a robotic frog says they can fix...
S01E15 Study Time
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. The...
S01E16 Mumm-Ra: The Ever Living
Every time Mumm-Ra gets a hold 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...
S01E17 Berserkers
The Cats' Lair is attacked by gold-loving robot pirates, the Berserkers. This is a good thing, really, since it means Lion-O and the ThunderKittens can ditch their chores and fight robo-pirates instead. Just don't tell...
S01E18 Jaga History
Freed from the Astral Plane, Jaga, ghost of the ThunderCats mentor, is now free to visit the Cats' Lair. Which means he can finally tell them why Thundera, their home world, exploded. It's story time.
S01E19 Barbastella
While flying with his new invention, Panthro hits it off with a new friend, Barbastella, the Queen of the Bats. Now Panthro needs help getting ready for his big date with her, because it turns...
S01E20 Adopt a Jackal
After a battle with the Mutants, Jackalman gets confused and accidentally returns to the Cats' Lair with the Thundercats, he is the dumbest mutant. Jackalman pretends to be a Thundercat so his enemies won't catch...
S01E21 Summer Fun Day
The Thundercats are exhausted from fighting bad guys all the time so Lion-O suggests they spend a relaxing summer fun day at the beach, with no fighting. Unfortunately the beach is home to the Crabmen,...
S01E22 Safari Joe
While minding her own business, Cheetara is caught in a trap set by Safari Joe, the famously annoying hunter. After escaping, she rallies the other ThunderCats to help her stop Joe once and for all,...
S01E23 Ratar-O
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....
S01E24 Prince Starling's Quest
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...
S01E25 Lion-S
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....
S01E26 Snarf's Day Off
Hey everyone, it's Snarf's monthly day off. That's right, 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...
S01E27 Mumm-Ra of Plun-Darr Part 1
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.
S01E28 Mumm-Ra of Plun-Darr Part 2
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...
S01E29 Mandora's Law
Tygra creates a bunch of new laws for Third Earth so Mandora can finally arrest the Mutants. Unfortunately, the ThunderCats are really bad at following their own rules and the Mutants are really good at...
S01E30 Thunder Road
When a crate containing fifty Swords of Omen lands on Third Earth, the ThunderCats rush out in the ThunderTank to find then. Unfortunately, The Mutants and Mumm-Ra want the swords too so it's going to...
S01E31 Corporate Buyout
The Cheetara Corp Employee Retreat gets canceled when Baron Karnon, a mysterious corporate raider, buys them out! Now Cheetara and Jan-Jan must brave the wilds of Third Earth's most dangerous jungles to find the Baron's...
S01E32 Hachiman
S01E33 Schnorp
S01E34 Berb-cules
When the ThunderCats tell the Berbils to stop building things for the Mutants, they build a giant Berbil named Berb-cules, who takes back everything they ever built.
S01E35 Pumm-Ra
S01E36 King of the Machines
Barbastella reunites with her ex-girlfriend, the elitist Queen of the Rats. A jealous Panthro installs AI into all the Lair's appliances, to become King of the Machines.
S01E37 Sword Heist
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 completely against stealing, but luckily, he knows...
S01E38 Claudus
S01E39 Telethon
S01E40 Mall-Ra
S01E41 Eclipsorr
S01E42 Wizz-Ra
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...
S01E43 ThunderDogs
S01E44 Mini Mongor
S01E45 Swampy Johnny
The Thundercats invite a super cool swamp man into the Cat's Lair who is on the run from some scary looking aliens.
S01E46 Tygra's Garden
S01E47 The Spacebeam
S01E48 Plundsmas
S01E49 Killing Time
S01E50 Grune
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!
S01E51 The First Thundsgiving
S01E52 Mandora Saves Christmas
Cast
Max Mittelman
Lion-O / Wilykat (voice)
Erica Lindbeck
Cheetara / Wilykit (voice)
Patrick Seitz
Panthro / Mumm-Ra (voice)
Chris Jai Alex
Tygra (voice)
