Doraemon: Nobita and the Birth of Japan

Doraemon and his friends travel back to ancient Japan, where they meet a boy named Kukuru. He tells them his tribe has been enslaved by Gigazombie, and Doraemon decides to help. Shinnosuke Yakuwa, remaking the 1989 film, sends Nobita (Megumi Oohara) and the others into a world with no towns yet, where the only thing the group has to rely on is each other.