The movie's plot takes Tenchi and the girls back in time to Japan in 1970, where they are on a mission to protect Achika, Tenchi's mother, from being killed by Kain, an evil space alien, time-traveling super criminal who seeks to destroy the Jurai bloodline. So with a little help from his friends, Tenchi tries to save the day. Does he succeed? Well go out and rent it, you wont be dissapointed!