Page "ThunderCats" Paragraph 19

The 1988 season began with the Peter Lawrence-scripted " ThunderCubs ," which, though named for its plot about the ThunderCats being transformed into children, was principally about Mumm-Ra reconstructing Thundera in order to retrieve both the weapon that had originally destroyed it ( the Sword of Plun-Darr ) and the legendary Treasure of Thundera.

In the course of the adventure, the treasure-containing the Book of Omens, a tome holding all the secrets of the ThunderCats, and many other mystical items-was scattered across the New Thundera, ushering in a new concept for the series: a season with an actual story arc.

Continuity between episodes became tighter as the ThunderCats, Mutants, Lunataks and Mumm-Ra alternated their adventures between Third Earth and New Thundera, searching for the treasure and exploiting its powers.

The season also featured the running theme of the Ancient Spirits of Evil having to take a more active hand in pushing Mumm-Ra into action, culminating in another unique feature of the season-an actual finale episode, " The Last Day ," in which the Spirits give Mumm-Ra one last chance to destroy the ThunderCats.

Ultimately, the villain failed, and the Spirits exiled him to the farthest corner of the Universe.