Watch Thundercats Season 1 Episode 43 full movie online free in HD with English subtitles – no download needed.
Thundercats: Mumm-Ra awakens the Rock Giant, an ancient monster made of stone which looked like a mountain to the Thundercats. When it wakes up, Mumm-Ra sends it to destroy the Thundercats' Lair. The Thundercats try and defeat it using the Thundertank, and eventually with the help of the Sword, the giant is beaten.