At some point in the distant future, the environmental crisis had become unmanageable. There were a lot of dead bodies. The wealthy were able to construct the underworld, while the impoverished were forced to remain on the surface and form gangs in order to stay alive. An underground guard named Jason Storm discovers that there is a plot to eliminate all of the people who live on the surface. He has no choice but to escape to the surface, where he recruits Sumai, a highly regarded martial arts master, as his friend in order to foil the nefarious plot.