The Best Episodes of ThunderCats

The Trouble with ThunderKittens

#1 - The Trouble with ThunderKittens 8.38

Season 1 - Episode 62

The Thunderkittens steal the Thundercats' weapons so they can prove they can use them, but the Mutants steal the weapons! Lion-O and the kittens must get the weapons back from the Mutants.

Fond Memories

#2 - Fond Memories 8.22

Season 1 - Episode 65

Mumm-Ra pretending to be one of the ThunderCats friends takes Lion-O to a gallery of the ThunderCats accomplishments. However, the pictures can come to life and Lion-O must battle Rataro, Safari Joe, and others. ONce the other ThunderCats arrive they end up in trouble and Lion-O is confronted by Mumm-Ra who has made himself into a carbon copy of Lion-O. It's Lion-O VS Lion-O and is a draw, until Lion-O shows Mumm-Ra his reflection.

Berbils

#3 - Berbils 8.10

Season 1 - Episode 3

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 them however, and they form an alliance. Mumm-ra attacks the Berbil village, but the Thundercats save it. In return, the Ro-Bears help the Thundercats to build Cats' Lair, a new base for the Thundercats.

Exodus

#4 - Exodus 8.05

Season 1 - Episode 1

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 fleet in an attempt to capture the Eye of Thundera. Due to the attack, the Thundercats find themselves on a distant planet. A grown-up Lion-O must save his Thundercats from the Mutants on Third Earth.

The Unholy Alliance

#5 - The Unholy Alliance 8.04

Season 1 - Episode 2

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. Both the Mutants and Mumm-Ra attempt to attack Lion-O to possess the Sword, but miserably fail.

The Mask of Gorgon

#6 - The Mask of Gorgon 8.00

Season 2 - Episode 8

Mumm-Ra plans on using the legendary Mask of Gargon to free a sleeping child in the hills of Elfshima to use against the Thundercats. When Chilla and Tug Mug fail to get the mask because it turned them to stone, Mumm-Ra summons it and decides he needs the Eye of Thundera so that the mask can use sight beyond sight to awaken the giant child. Lynx-O warns the Thundercats of the mask and the sleeping child, but Lion-O, Panthro, and Willa still go to the pyramid, but are turned to stone by the mask. Mumm-Ra then uses the Eye of Thundera and the mask to awaken the giant. But Lynx-O and Ben-Gali in the Thunderstrike defeat the giant and the mask gets smashed apart restoring everyone who had been turned to stone, and the Eye of Thundera burns the book that contained the mask's terrible secrets.

Lion-O's Anointment Final Day: The Trial of Evil

#7 - Lion-O's Anointment Final Day: The Trial of Evil 7.92

Season 1 - Episode 61

Finally, to prove that Lion-O is worthy to be the Lord of the Thundercats, he must defeat his worst enemy. Mumm-Ra. He manages to find a way into Mumm-Ra's tomb, and defeats him by throwing his coffin into the evil cauldrum. This is the first time that Lion-O really defeats Mumm-Ra.

The Demolisher

#8 - The Demolisher 7.78

Season 1 - Episode 38

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 acknowledges the power of the Demolisher, and convinces him to seek and destroy Lion-O. The Demolisher, searching for another fight, gladly accepts Mumm-Ra's advice. He battles with Lion-O only to face defeat.

Dimension Doom

#9 - Dimension Doom 7.78

Season 1 - Episode 33

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 control minds. When the time arrives and Wiz-Ra comes through the portal, Mumm-Ra steals the helmet. Cheetara helps Wiz-Ra get the helmet back and free the ThunderCats from its spell.

The Fireballs of Plun-Darr

#10 - The Fireballs of Plun-Darr 7.71

Season 1 - Episode 16

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 fireball-shooting machine. The mutants terrorize Third Earth with their fireballs, until the Thundercats go to castle Plunn-Darr and destroy their dangerous new weapon.

Together We Stand

#11 - Together We Stand 7.70

Season 2 - Episode 10

Mumm-Ra summons the Berserkers and coats their armor with Thundrainium and sends them to attack the Thundercats at the Tower of Omens. Realizing that their armor is coated with Thundrainium, the Thundercats at the tower need help and Lion-O and Tygra rescue them. They create a windstorm to rub off the Thundrainium and the Berserkers retreat. Meanwhile the Lunataks invade Cats' Lair and the Thundercats must rush back to save the Thunderkittens and Snarf who are being held as the Lunataks' slaves.

Queen of 8 Legs

#12 - Queen of 8 Legs 7.67

Season 1 - Episode 34

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-O. Snarf follows them and gets trapped in the Kingdom of Webs. Lion-O tries to save him but ends up having to call the other Thundercats. Eventually they confront and beat Spidera.

The Superpower Potion

#13 - The Superpower Potion 7.67

Season 1 - Episode 59

Vulture-man invents a potion that turns him into the most powerful being on third earth. He becomes so powerful that he even challenges Mumm-Ra's power and wins. He becomes so powerful that if the Thundercats don't stop him, he WILL be the supreme ruler of third earth. Luckily, the mutants fight over the super power potion, and end up destroying the vile

The Terror of Hammerhand

#14 - The Terror of Hammerhand 7.64

Season 1 - Episode 6

When Snarf and a young unicorn are captured by the pirate Hammerhand and his crew of Berserkers, Lion-O goes to rescue them.

Excalibur

#15 - Excalibur 7.63

Season 1 - Episode 51

The Ancient spirits of evil show Mumm-Ra the story of King Arthur, and explain to him that the strongest sword that ever existed was Excalibur, Arthur's weapon. Mumm-Ra disguises himself as Arthur, and returns to lake where the sword is guarded by the lady of the lake. Fooled by his disguise, the lady gives Mumm-Ra Excalibur. The disguised Mumm-Ra challenges Lion-O to a dual, and Lion-O foolishly accepts the challenge. The sword clash, and Excalibur is victorious. The eye of Thundera is split in two, and the Thundercats become powerless. Merlin, Arthur's teacher and a famous magician stops Mumm-Ra from destroying the Thundercats, and restores the eye to its original state.

Mumm-Rana

#16 - Mumm-Rana 7.56

Season 1 - Episode 63

The mutants fail to destroy the Thundercats in an areal assault and find themselves stranded on a far part of third earth inhabited by the good Mumm-Rana. She is suppose to be the exact opposite of Mumm-Ra, serving the ancient spirits of goodness as opposed to the ancient spirits of evil. Somehow Mumm-Ra shows up on the scene and puts her under a spell where she must serve him. These two now evil Mummies plot to destroy the Thundercats and rule third earth side by side as King and Queen.. Surprise surprise good always pevails, and the Thundercats manage to turn Mumm-Rana back to her good self, and banish Mumm-Ra once again.

The Telepathy Beam

#17 - The Telepathy Beam 7.33

Season 3 - Episode 9

Vultureman creates a device that plays around with Cheetara's sixth sense. She begins to see images that aren't real, and she soon begins to lose faith in herself. Meanwhile, the Lunataks enslave Panthro with a mind control device, and tell him to make the Sky-Tomb able to fly to Thundera. When the Thundercats are looking for Panthro, Vultureman makes Cheetara see images of him being captured by Mumm-Ra, being stuck on Hook Mt., and being held at Castle Plundarr. Lion-O goes to Mumm-Ra's pyramid, and is ambushed by Luna and Amok, who capture him. Tygra goes to Plundarr and is captured by Red Eye. The Thunderkittens also get captured on Hook Mountain. Cheetara is about to go crazy, but Lynx-O tells her to listen to her heart instead of her mind. She turns into a huge ball of energy that shoots out and destroys Vultureman's device and frees Panthro and the other Thundercats.

The Shifter

#18 - The Shifter 6.86

Season 1 - Episode 64

Vulture Man creates a device that shifts minds and bodies. He gives Panthro Snarf's body, and gives Snarf Panthro's Body. He also shifts Lion-O and Wiley-Kat, and thus makes the sword of omens unusable. Eventually, Vulture Man shoots the sword, and it causes a reaction that restores all the Thundercats to their rightful bodies.