Four friends wanted to get away from it all for a birthday celebration in a remote country house, but when a mysterious injured man turns up on their doorstep telling tales of a city ravaged by a mysterious epidemic and the looters who have pursued him, the friends rally to help. As the night progresses, it becomes clear that all is not as it seems, plunging the friends into a battle for survival that challenges their deepest fears.,嗒嗒嗒,重机枪声音响起来,张德兵抱着一挺美国来的多管机枪,子弹撕破机器人的外壳将它们打成一付筛子,接着咣当一下倒在地上。溃逃的士兵看到这一幕呆了,机器人什么时候成了豆腐渣?难道终结者也干这种工程?……