On Earth the humans have used up almost all the water on the planet, rendering it a precious commodity. Juju is a teenaged gang leader who was robbing a convience store for water when Rael, a mysterious young girl bound in chains, appears to him. As he doesn't know who or what Rael is, Juju is spurred on a journey to find her. Eventually he manages to free Rael from her house, but is consequently branding as an outlaw. As the authorities mount a search for Juju and Rael, they team up with the comical Captain and Yunfa,a girl who is jealous of all the attention Juju gives Rael. Eventually they meet Professor Guy who seems to have a history with Rael, and Ursula & Peewee, who seek Rael further their own mysterious ends.