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‘’Thundercubs, Part 4" is the ninety fourth episode of ThunderCats (original series)


The Mutants arrive and Mumm-Ra has them hide a decoy Book of Omens, leading the ThunderCats in the wrong direction.

The Thundercats go after them through the Caverns of Cold. They head toward the Canyon of Youth, but due to the effects of the canyon, Panthro, Cheetara, Tygra, Snarf, and Snarfer are changed into ThunderCubs. Lion-O must use the sword to give the ThunderCubs ThunderCat understanding.

Meanwhile, on Third Earth, Jackalman, Monkian, and the Lunataks attack Cat's Lair and capture Bengali and Wilykit. Lion-O learns that the Thundercats back on Third Earth are being held prisoner in Sky Tomb, so he decides to send the Thundercubs to Third Earth to rescue them while he tries to get the Book of Omens from Mumm-Ra.

Snarf decides to stay with Lion-O and the other ThunderCubs prepare the Feliner to leave New Thundera but Mumm-Ra arrives and attacks the ThunderCubs.




Main Characters
Guest Characters


Episode Navigation

Previous episode:
"ThunderCubs, Part 3"
ThunderCats Season Guide Next episode:
"ThunderCubs, Part 5"