This week’s episode of ThunderCats offers a history lesson as Lion-O travels into the Book of Omens to live out his ancestor’s past as Leo, who led a rebellion against Mumm-Ra millennia ago. According to Warner Bros.’ description of the seventh episode, titled “Legacy,” the origin of the stones and the cat’s relationship to Mumm-Ra and the other animals of Third Earth is finally revealed.
MTV Geek had an exclusive sneak peek at the episode, revealing that characters from SilverHawks and TigerSharks, ThunderCats’ Rankin/Bass animated cousins from the ’80s, have been worked into the mythology of the modern version.