While living on Third Earth, the group has to go against Mumm-Ra, a sorcerer who wants a gem in the ThunderCatsâ hold called the Eye of Thundera. CBR ranked ThunderCats No. 2 on a list of the 25 ...

Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the world of Third Earth. But their enemies, the Mutants of Plun-Darr have followed them and it turns out ...

Visit the TV show page for 'ThunderCats Roar' on Moviefone. Discover the show's synopsis, cast details, and season information. Watch trailers, ... including the evil Mumm-Ra, ...

Of course, the most recent is ThunderCats Roar, ... That said, both twins are known for their mischievous pranks, usually being reprimanded by the older ThunderCats. 5. Mumm-Ra ...

But the Mutants, determined to possess the ThunderCats' mystical gem, the Eye of Thundera, have tracked them down - and they've also forged an alliance with Mumm-Ra, the devil-priest of Third Earth!

ThunderCats Roar will premiere in 2019 on Cartoon Network. Another fan-favorite animated franchise that's returning soon is She-Ra, with the new series debuting on Netflix in 2018. Alex Gilyadov ...

But the Mutants, determined to possess the ThunderCats' mystical gem, the Eye of Thundera, have tracked them down – and they've also forged an alliance with Mumm-Ra, the devil-priest of Third Earth!