Since The Thundercats Roar Gang finally Escaped from jail, They need to stop Mumm-Ra from defeating the world
Lion o and His Friends Are in Jail for 1 Year So Need to Do what The need to Get them Free In this incarnation, Jaga is indirectly responsible for both the destruction of Thundera and his own death because he threw the Sword of Plun-Darr into Thundera's core in an attempt to dispose of it. He later got free from the Astral Plane so he could tell the ThunderCats about Thundera's destruction after his battle with Ratar-O and the Sword of Plun-Darr. Jaga (voiced by Larry Kenney) – A jaguar-themed Thunderian who is the ThunderCats' deceased mentor and the narrator for the series' pilot episode.In this show, Snarf is depicted as a robot animal and possibly the smartest of the ThunderCats. Snarf (voiced by Victor Courtright) – The team's mascot and Lion-O's pet.He is the more mature twin, armed with chemical capsules in this incarnation. WilyKat (voiced by Max Mittelman) – A wildcat-themed Thunderian, one half of the ThunderKittens, and WilyKit's fraternal twin brother.She is a tomboy obsessed with fighting and fun in this incarnation. WilyKit (voiced by Erica Lindbeck) – A wildcat-themed Thunderian, one half of the ThunderKittens, and WilyKat's fraternal twin sister.
Lion-O, the newly appointed Lord of the ThunderCats, attempts to lead the team as they make this planet their new home. Lion-O, Tygra, Panthro, Cheetara, WilyKit and WilyKat barely escape the sudden destruction of their homeworld, Thundera, only to crash-land on the mysterious and exotic planet of Third Earth.