两名顶级杀手各为其主，双方进行了多次较量，但他们亲人的惨死使得他们开始冷静思考自己的未来，并最终两人成为惺惺相惜的好友，并联手对付那些凶残的敌人。

Alain Moreau (Jean-Claude Van Damme) is a cop in Nice, France. Alain is at a funeral that is being held for a fellow cop, when Alain’s partner Sebastien (Jean-Hugues Anglade) shows up. They discover that his name was Mikhail Suverov, and Mikhail was born on exactly the same day Alain was. As it turns out, Mikhail is the twin brother Alain never knew he had. Tracing his brother's steps back to New York City, Alain discovers that Mikhail was a member of the Russian Mafia, who was chased down and killed when he attempted to get out. Of course, now Alain is mistaken for Mikhail, who was also mixed up in a war between Mafia organizations. With his only real ally being Mikhail's fiancé Alex Bartlett (Natasha Henstridge), Alain sets out to avenge his brother's death, which is complicated not only by the Mafia, but by two corrupt FBI agents.

新奥尔良市。在一个黑夜里，一个男子遭到杀害。不久以后，一位富有的年轻女郎娜塔莎前来寻找她失去联系的父亲。在一个小餐馆外，失业海员赞斯打倒了一群想抢劫娜塔莎的歹徒。为了交清出航所须的费用，赞斯答应了娜塔莎帮她寻父的要求。警方发现了被火烧焦的娜塔莎父亲的尸体。然而，敏锐的直觉使赞斯发现这里面有问题。他找到了被箭刺穿的一块身份牌，确定了娜塔莎的父亲是被杀的。原来，这是以富为首一批匪徒的“职业工作”。...

为寻找失踪儿童的前雇佣兵被雇佣进一个混杂的武术战队.

20世纪60年代，美国的势力向亚洲渗透，为此政府实行的一项绝密计划——战士再造计划，通过药物注射等手段将士兵大造成冷血无情、实力强悍的超级战士。