"[2] Unable to make and headway in a case, Detective Ogawa asks former yakuza member Ryoji Tojima to go undercover to obtain more information.

Tojima and his men eventually discover that the establishments owned by Tatsamura are fronts for an illegal moonshine operation at work.

Meanwhile, Osamu recklessly takes it upon himself to investigate further and ends up captured by Tatsumura's men, who also kidnap Tojima's wife.

[12][11] In the book Historical Dictionary of Japanese Cinema, author Jasper Sharp writes that, along with Wolves, Pigs and Men and Greed in Broad Daylight, "Gang vs. G-Men (Gyangu tai G-men, 1962), in which a disparate group of former criminals are assembled by the police to take on a vicious gang [ .

established Fukasaku's pattern for contemporary action and crime dramas inspired by the French New Wave and American noir, featuring realistic portrayals of violence and often set in chaotic, working-class milieux.