Step on the Gas! 1970

Yūji, fresh out of prison on parole, is taken to a bar that Nao operates and there he meets his old love Emiko, now working as hostess, and accepts Nao's appeal for help in finding the drug thieves. After grilling one of the small hoodlums about who took the marijuana, Yūji and Nao find the looter is a mammoth underground organization. Meanwhile, a group of hoodlums are disgruntled over their failure to sell the drug through Nao. One day they kidnap Nao's sister Shinko and rape her. A fight then occurs between them and Nao. Yūji, however, steps between them and succeeds in luring the hoodlums into storming the association's headquarters to recover the marijuana. When Emiko is shot to death by an association rascal, Yūji, Nao and hoodlums attack the association headquarters. President Yuasa tries to escape by helicopter with the drugs, but Yūji and Nao recover the marijuana and triumphantly take to the air in the helicopter…