This sci-fi action film, aimed at a younger audience, is based upon a popular video game. It is set in a futuristic Los Angeles after the "big one." Most of the city, including Hollywood is underwater. The city is now called "New Angeles." Jimmy and Billy Lee are teenaged brothers. Their mentor carries one half of a magical dragon amulet. The evil Koga Shuko carries the other half, which he stole. If the dragon were put together the owner would have tremendous powers. Koga is after the boys and the charm. With his evil gang and he chases them through city until the climactic showdown.