麦考尔（丹泽尔·华盛顿 Denzel Washington 饰）一直以来都过着隐姓埋名离群索居的生活，所有人都以为他已经死了，只有苏珊（梅丽莎·里奥 Melissa Leo 饰）还和他保持着联系。一天，苏珊接到任务，要前往布鲁塞尔调查一位CIA特工自杀的案件，之后就失去了联系，麦考尔凭借这本能察觉到，苏珊已经死了。
　　为了调查苏珊死亡的真相，麦考尔不惜重出江湖，他和曾经的搭档戴夫（佩德罗·帕斯卡 Pedro Pascal 饰）取得了联系，然后得知苏珊的死亡和他曾经的同行们有着千丝万缕的关联，如今他们都已经成为了自由职业杀手，而苏珊就是他们的目标之一。所有事件的发源处就是那起特工自杀案件。

Emma le Roux just wants to go home for the holidays. Gentle, beautiful, pacifist Emma. She's made the trip to her father's farm a thousand times. Piece of cake. But not today. Today she will cross paths with Bosman and Baz and Jay. And Boela and AJ and Piet. Bosman is the mastermind of the drug syndicate. A violent psychopath. Baz and Jay are his henchmen - violent dogs on a short leash. AJ and Boela, spoiled brats looking for validation, are on board to make a quick buck in the criminal underworld. And then there's Piet, the weakling, who is willing to do just about anything for his cousin Bosman. Emma witnesses the murder of a policeman at their hands. And they see her seeing them. Now they're hunting her down like an animal. She's easy prey, after all - it'll all be over soon. The problem is, Emma is the daughter of Jacques le Roux. And Jacques le Roux was a Special Forces soldier. The hunt isn't going according to plan. Everything starts falling apart, and fast. At first they were...

米兰，现在：费尔南多，乌戈广场的儿子，是一个杰出的刑事辩护律师，他的母亲，耐莉，做了一切力所能及的事情来抚养他不同于他的父亲，一个可悲的黑帮分子。当1亿欧元在一次远程信息处理欺诈中消失，而首要嫌疑犯是费尔南多·皮亚扎的客户时，他的名字将被设定为危险的妥协。尤其是如果这家被欺诈的公司实际上是对世界上最强大的犯罪活动“ndrangheta黑手党”的掩盖。