As a youngster John Wyatt saw his parents killed and his brother kidnapped. On a wagon train heading West he meets his brother who is now a spy for

第一集的病毒再次袭来！自从他的朋友遭殃之后，保罗这次能否逃过劫难呢？  这一次恐怖事件的场景被设在了高中，一种极具腐蚀性的污染水源被装瓶送入校园，出现在高中返校舞会上，毫不知情的学生们在饮水后，开始吐血、腐烂、最终死亡。