在这部全金属暴徒喜剧/科幻/惊悚/犯罪片中,黑帮小人物纲本（うじきつよし 饰）立志成为土佐（シーザー武志 饰）那样的大人物，但努力多年，依然情场职场双失意。土佐当年因刺杀敌对帮派老大入狱，出狱后将成为睦美组下任大哥的有力竞争者，因此被对手（大杉涟 饰）刺杀。纲本在刺杀中亦中弹身亡。
命不该绝的纲本被一疯狂科学家（田口トモロヲ 饰）救下，同土佐的部分器官综合起来，改造成威力强大的半机械人。无法忘记背叛之痛的纲本，开始向睦美组展开报复。昔日好友滨田（北村一辉 饰）及时阻止，复仇最终失败。土佐的女友（中原翔子 饰）为了复仇，刺杀睦美组组长失败被俘。原本灰心丧气的纲本因而再次扑向黑帮总部……
Kensuke Hagane (Tsuyoshi Ujiki) is a beginner in the Yakuza world , he is very fearful and nobody respect him. After the prison release of Tosa (Takeshi Caesar), who is a Yakuza boss and the idol of Hagane, both are killed as a result of a gang problem with Tosa. Both corpses ends in the hands of mad scientific who creates a kind of robot with parts of both corpses. Now Hagane is part machine with some parts of Tosa, he is bullet proof and has an incredible strength. When he escapes from the scientific, he is looking out for revenge with the heart of his boss and idol, literally.
