丹尼·科斯莫

　　杀手（约翰·库萨克）接到神秘商人（罗伯特·德尼罗）的委托，去取回一个重要的包裹。他来到了交易场所汽车旅馆，与一个金发美女不期而遇，事情突然变得棘手起来，包裹里究竟装了什么，神秘美女又是什么背景，让杀手陷入了前所未遇 的绝境。

　　St. Jude Square is a neighborhood living in fear and despair. The dueling gangs of local kingpins Dash and Antuan terrorize the streets and the citizens live without a shred of hope... until mysterious stranger Ryan Hong (Cung Le) arrives in town. He begins to play one gang against the other using his unparalleled martial arts skills, and by calling on the teachings of his brilliant mentor Tiano (Jean-Claude Van Damme) to find the strength to battle back. However, just as he begins to bring the community under control, Hong is confronted by Mr. V, the town's ruthless and corrupt police chief. At first Mr. V is impressed by Hong's skill, but soon sees Hong as a threat to his regime, and the two warriors are locked in a head-to-head battle, pitting the fear and corruption of Mr. V's regime versus the new beginning Hong represents for the people of St. Jude Square.

　　稳定的心态，精妙的手法，杀人于无形，这是一个顶尖杀手的必备特质。亚瑟（杰森•斯坦森Jason Statham 饰）入行多年，在自己以前的搭档哈里（唐纳德•萨瑟兰Donald Sutherland 饰）的帮助下，已经成为一个出色的杀人机器。亚瑟接到一项新任务，暗杀对象是哈 里。虽然亚瑟不忍下手，但在清楚的得知哈里难逃一死之后，最终还是决定亲自送哈里一程。哈里的儿子史蒂夫（本•福斯特 Ben Foster 饰）为了替父报仇，决意要跟随亚瑟学习。在亚瑟的训练下，史蒂夫逐渐掌握了作为一个机械师所必备的技能，与亚瑟合作完成一项又一项暗杀任务。虽然亚瑟从未告诉史蒂夫杀害哈里的凶手，但史蒂夫还是知道了其父被害为亚瑟所为，复仇的火焰在史蒂夫心中逐渐升腾……　　本片翻拍自1972年的同名电影（译作《龙虎铁金钢》），投资约4000万美元。