‘’The Last Day is the one hundred tenth episode of ThunderCats (original series)
Impatient with Mumm-Ra failing them time and time again, the Ancient Spirits of Evil give him one final chance: destroy the ThunderCats within twenty-four hours, or face exile. To this end, he is granted extraordinary power by the Spirits, and grows to a gigantic size.
Mumm-Ra spreads destruction all over Third Earth, sends Tygra, Cheetara, and Panthro to limbo, and buries Lion-O alive. Then he attacks and destroys the Tower of Omens, and the Thunderkittens barely escape, but Mumm-Ra eventually finds them and sends them to limbo too. Snarf must go into the Book of Omens to find out how to defeat Mumm-Ra.
Jaga and the Thundercats in limbo go into the Eye of Thundera to help Lion-O free himself from his rocky prison. Lion-O then battles Mumm-Ra at Cats Lair and finds out from Snarf that Mumm-Ra only has until sunset to defeat the Thundercats.
- Main Characters
- Guest Characters
"The Circus Train"
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"Return to Thundera, Part 1"