Watch Thundercats Season 1 Episode 21 full movie online free in HD with English subtitles – no download needed.
As Lion-O and Pumyra try to evade Mumm-Ra and his forces in the mines of Mount Plundarr in an effort to keep the Sword of Plundarr out his hands, we flash back in time and discover its origin... and its relationship with the Sword of Omens.