Joji Kano is a loose cannon cop from backwoods Okinawa, sent to Tokyo to investigate the grizzly murder of an Okinawa woman. As he probes deeper into the sleazy world of flesh-peddling, talent agency corruption and mob influence, Kano uncovers the shocking truth.

When a lucrative waterfront development becomes available, the Kawade gang quickly use their political connections to secure the land. However, the acting boss of the Ohara gang also has his eyes on the property and recruits crooked detective Tokumatsu Kuno to help him hijack the deal. With relations between the rival gangs at breaking point, it's not long before all-out war breaks out as the gangsters, police and local politicians battle for control of the city.

A yakuza gang gets driven out of Yokohama by a big gang from Tokyo. They relocate to Okinawa to violently start over.

In the future, the Japanese government captures a class of ninth-grade students and forces them to kill each other under the revolutionary "Battle Royale" act.