Where To Stream ThunderCats Roar Season 1 Episode 27
Mumm-Ra of Plun-Darr, Part 1
- Aired May 23, 2020
- 15 Min
The Thundercats' worst nightmare comes true when their worst enemies, Mumm-Ra and The Mutants, team up after Mumm-Ra acquires The Sword of Plun-Darr.