S1E21
ThunderCats Season 1 Episode 21
⚠ Spoiler alert This recap gives away what happens in this episode.
Episode Summary & Review
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.