When a container washes ashore the residents of a sleepy cul-de-sac are plunged into violence, terror and paranoia. Ring fenced by the military a single mother must overcome all the odds to save her daughter.

两个敌对的伦敦黑帮家族，哈里根家族与史蒂文森家族争夺大权，展开你死我活的战争，恐怕将推翻帝国并摧毁许多人的人生。危险又英俊的平事人哈利·达·索萨（汤姆·哈迪 饰）被卷入战局，他很清楚对立势力交锋时人们的忠诚何在。两强交锋时，一定会跨越界线，唯一的可取之处就是不变的信条：家人最重要。