鲨鱼咬伤会将一种病毒传播到全球，使世界发生翻天覆地的变化。在海洋深处，一群研究人员争分夺秒地寻找治疗方法。有些东西感染了实验室的技术人员，在他们被自己和潜伏在试验池内外的鲨鱼杀死之前，用解毒剂到达水面是一场与时间赛跑。

Burned alive in an accident and locked away, the urban legend of Crispy refuses to die. Escaping the asylum, the scarred killer returns to Camp Hollow, where a group of unsuspecting campers find their weekend of fun twisted into a nightmare of fire, blood, and vengeance as his rage consumes the woods once more.