A retired racing champion, now a driving instructor, gets involved with the speed tribes after impulsively taking to the streets to relive his former glory.

Daisuke and Shinichi are companions who frequent girlie shows and parties until they find out they are rivals bidding for control of a major resort hotel. During the bargaining sessions each accuses the other of misconduct because of their escapades, thus getting them in trouble with their families. Shinichi's ecology group and Daisuke's wife's women's lib movement become involved.

A Japanese bullet train is threatened with a bomb that will explode automatically if the train slows below 80 km/h, unless a ransom is paid. Police race to find the bombers so the train crew can learn how to defuse the bomb.