东京都知事遭到日本黑帮份子暗杀后,美国中情局决定号召前任探员崔维斯杭特(史蒂文·席格 饰)来调查本案。崔维斯在日本长大,而且曾受日本黑道的栽培。他利用他在日本的人脉,很快地发现老派与新派的黑帮份子之间正酝酿着一场斗争,年轻的一方与中国黑帮关系密切。崔维斯与老派黑帮份子站在同一阵线,赤手空拳地在日本大展身手,喜欢史蒂文·席格的观众千万别错过另一部功夫经典。When the governor of Tokyo is killed in his campaign for election, the former CIA agent Travis Hunter is assigned to find the responsible working together with the rookie FBI agent Sean. Travis was raised in Japan, has great connections with the underworld of the streets and is a master in sword and martial arts, trained by a former member of Yakuza. Travis discloses that there is a war between the old and traditional members of Yakuza and the new generation leaded by the deranged and sick Kuroda, who has associated to the Chinese Tong mobster Chen in a powerful drug dealing business. When his fiancée Nayako is brutally and cowardly murdered by one of Kuroda's men, the mission of Travis becomes a personal issue and he seeks revenge.