Himuro (Yasukaze Motomiya), Captain of the Kyowa Clan and Tamura (Yoshiyuki Yamaguchi), the Chief of Headquarters, are arrested on suspicion of assault. Sakaguchi (Takashi Kitadai), the fourth leader in the Yamazaki Family, and other members of the group scramble to prove their innocence. In doing so, they discover the existence of a gold smuggling ring and an international espionage organization behind the case.