Lion-O ventures into the Book of Omens where he becomes the incarnation of his renowned ancestor, the valiant Leo, who led the rebellion against Mumm-Ra in a previous millennium. In this landmark episode, we learn the origin of the Stones of Power and the Cats' relationship to Mumm-Ra and the other animals.
click here to see where to watch or (watch here).
Ready to Watch ThunderCats, Season 1, Episode ?