Return of the ThunderCubs
Return of The Thundercubs - Title Card.png
Episode 3.12
Original Airdate September 20, 1988
Writer(s) J. Larry Carroll
Previous Episode Key to Thundera
Next Episode The Formula
All Episodes Episode Guide

Return of the ThunderCubs is an episode from the original series of ThunderCats. Written by J. Larry Carroll, it originally aired on September 20, 1988.

ThunderCats Bullet Point.png Summary[edit | edit source]

Mumm-Ra turns Panthro, Tygra and Cheetara into ThunderCubs once again so that he may use Cheetara's sixth sense to help locate the lost items from the Treasure of Thundera.

ThunderCats Bullet Point.png Story[edit | edit source]

The Ancient Spirits of Evil instruct Mumm-Ra to use Cheetara's extra-sensory abilities to find the Treasure of Thundera. Obeying them, the mummy and Ma-Mutt head in the Mumm-Raft to New Thundera where Ma-Mutt manages to unearth a fragment of the casket that initially held the Treasure of Thundera.

At that moment, Panthro, Tygra and Cheetara arrive on New Thundera in the Feliner, but Mumm-Ra causes the craft to crash. He then changes into the "Fog of Despair", picks up the three ThunderCats and casts them in the Canyon of Youth where the trio are changed into ThunderCubs. Mumm-Ra then transforms into Lion-O and orders the cub Cheetara to use her telepathic powers and the fragment of the casket to find the Treasure of Thundera.

Meanwhile in the Cats Lair on Third Earth, Lion-O learns about the Feliner's crash from the Sword of Omens' "Sight Beyond Sight". Since no ThunderCat vehicle apart from the Feliner can travel in space, Lion-O and Snarf head to Castle Plun-Darr and pay the Mutants to ferry them to New Thundera in the RatStar.

The Mutants agree but in mid-flight break their deal and lock Lion-O and Snarf in a chamber. Fortunately the two ThunderCats manage to get out, commandeer the RatStar and fly it to New Thundera. When Lion-O finally tracks down the ThunderCubs, they and Mumm-Ra/Lion-O have already unearthed the Mirror of Truth. With the help of the Sword of Omens and the Mirror of Truth, the real Lion-O is able to turn the ThunderCubs back into adults. Mumm-Ra changing into his "All Powerful" form fires at Lion-O but Cheetara uses the mirror to deflect the shot back at him.

With Mumm-Ra defeated, the ThunderCats repair the Feliner and head back to Third Earth, taking with them the Mirror of Truth and the Mutants, who are stuffed into the cargo hold as punishment.

ThunderCats Bullet Point.png Characters[edit | edit source]

ThunderCats Bullet Point.png Vehicles[edit | edit source]

ThunderCats Bullet Point.png Locations[edit | edit source]

ThunderCats Bullet Point.png Trivia[edit | edit source]

  • The start of the episode shows a few scenes from the "ThunderCubs" five parter.
  • In this episode, Mumm-Ra, for a second time in the series, changes into Lion-O. The first time he morphed into Lion-O was in "Fond Memories". However, in that episode his suit was red while in this one it is blue.

ThunderCats Bullet Point.png Goofs[edit | edit source]

  • When Mumm-Ra throws Panthro, Cheetara, and Tygra into the Canyon of Youth, he wishes them a nice second childhood. Since the three ThunderCats had already experienced their second childhood in the episode "ThunderCubs - Part IV", this statement is incorrect. Technically this is their third childhood.

ThunderCats Bullet Point.png Notable Quotes[edit | edit source]

ThunderCats Bullet Point.png Media[edit | edit source]

This episode was released on the following media:

DVD[edit | edit source]

ThunderCats Bullet Point.png Episode Screenshots[edit | edit source]

ThunderCats Bullet Point.png External Links[edit | edit source]

ThunderCats 1980s - Episode Guide - Season 3
ThunderCubs - Part I | ThunderCubs - Part II | ThunderCubs - Part III | ThunderCubs - Part IV | ThunderCubs - Part V | The Totem of Dera | The Chain of Loyalty | Crystal Canyon | The Telepathy Beam | Exile Isle | Key to Thundera | Return of the ThunderCubs | The Formula | Locket of Lies | Bracelet of Power | The Wild Workout | The Thunderscope | The Jade Dragon | The Circus Train | The Last Day Slithe.png
Seasons Season 1 | TV Movies | Season 2 | Season 3 | Season 4 | Full Episode List
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