A police officer is recruited to a special agency and given a license to kill. He is given a dozen or so young policemen and a bar as a front. Meanwhile, girls are disappearing and the friend of one girl is searching for her. It turns out the girls are being kidnapped and sold into bizarre kinky sex games to rich industrialists by a megalomaniacal corporation. One of the young deputies becomes involved and finds a friend of his (the boyfriend of the searching woman) is involved.
After a series of chance meetings a shiftless motorbike enthusiast Ko begins a romance with a carefree girl Miyo, after teaching her to ride. When Miyo proves herself a biker prodigy Ko begins to fear that she is destined to crash.
Following a stint in reform school, Ryu (Shinsuke Shimada) returns to his home, the Minami area of Osaka, accompanied by his new friend Ko (Takeshi Masu). He's greeted by his friends, Chabo (Ryusuke Matsumoto) and Ken (Bang-ho Cho). They seek to forge their own path through a multitude of rival gangs in Kita and Minami, including the Hokushin Alliance, backed by the yakuza, the Hope Association, and various other minor factions, including Zainichi Korean groups. What follows is a wild, fast-paced story of violence, revenge, betrayal, and discrimination, that never loses its sense of humor.
