Joker and Hachi come to the Koga Village to find the Urn of Life, the secret of Himiko's immortality, which may contain a clue to the Ancient Treasure. The village elder tasks Hyakimaru to stand guard over the urn, but he's attacked by the robot army of Dr. Neo, who has come looking for clues to Phoenix's whereabouts. Joker, Hachi, and Hyakimaru must work together to take back the urn!