在这部黑帮家族动作/犯罪片中,三轮家三兄弟自小便拥有痛苦不堪的经历，父亲欠债、母亲被讨债人强暴、父亲被小流氓打死。个中辛酸，谁人知晓。长大后，三兄弟各自拥有不同的人生：长兄秀志（岩城滉一 饰）表面上是事业有成、家庭幸福的实业家，暗地里却是秘密组织“日本黑手党”的干部；二哥隆志（木村一八 饰）是自卫队的干部，此刻正与妻子万里子（田村美保 饰）殷切等待新生命的到来；老三猛志（加勢大周 饰）是冷酷无情的独行杀手，他出手迅猛果断，人送绰号“闪电猛志”。
某天，黑道组织神州睦会总长岩井田良一（安岡力也 饰）被人刺杀，根据现场监控录像发现，凶手正是秀志的弟弟猛志。神州睦会干部剑持一行（遠藤憲一 饰）绑架了万里子以作要挟，愤怒的隆志调来坦克，与哥哥秀志一同闯入神州睦会总部。经过一番周折，秀志发现岩井田遇刺事件竟与“日本黑手党”的头目西肋硕舟（本郷功次郎 饰）有关，幕后的阴谋渐渐浮出水面……
When the mobster Iwaida Nishikawi is executed by the hit man Takeshi, his family chases the killer. Takeshi's brothers Takashi and Hideshi Miwa try to find Takeshi, who is hidden with the nurse Rie Ishibashi, to protect him and Hideshi discovers that Takeshi was secretly sent by their Yakuza boss to eliminate Iwaida. Meanwhile, the mobster Kenmoshi abducts Takashi's wife Mariko and rapes her, trying to force Takashi to deliver his brother to him.
