The 600-Million-Year-Old Boy Warrior (6億歳少年戦士 6 Oku Sai Shōnen Senshi) is the twenty-sixth episode of Chouriki Sentai Ohranger. This episode is the first of a three-part story, introducing two child-like beings from Pangaea: the warrior Riki and the mysterious Dorin; as well as Baranoia's Machine Beast Tamer Keris.