In Josh Sternfeld's  meticulously crafted murder mystery, a Catskills police detective (Nick Stahl) charged with investigating a juvenile homicide in an affluent suburb finds he must return to his struggling hometown of Caswell to find the killers. As his investigation picks up intensity, the grieving mother begins a battle of will and vengeance with members of Caswell, igniting a class war between two vastly different towns in rural America.

由布鲁斯威利斯主演的这部动作网络惊悚片延续了从堡垒1开始的冒险。在要塞营地遭到致命袭击数周后，罗伯特（布鲁斯威利斯饰）营救了他的宿敌巴尔扎里（查德迈克尔默里饰）的遗孀萨莎。但是在回到营地掩体内之后，萨沙似乎有自己的计谋，随着新的袭击到来，罗伯特遇到了一张他认为再也见不到的熟悉面孔......