一行人在深山里迷了路，还得应付一群军阀头目及外星异形，但最后却无人幸免。一条异变毒蛇因其幼卵受人类摧残，决定以牙还牙，将无端闯入的人类赶尽杀绝。

正当人们准备高高兴兴过节的时候，古老的玛雅预言似乎要实现了…… 在该片中，一连串与神秘的玛雅预言及圣诞颂歌《The 12 Days of Christmas》存在某种联系的灾难将一座小镇拖向毁灭的边缘，并且这种现象正快速传遍全世界。一个父亲（Ed Quinn，《小镇疑云》）发现自己的女儿（Magda Aponowicz，《天赐》、《卡布里卡》）是「天选之人」——只有…

City dweller Skip leaves his urban life behind indefinitely to seek fresh air for his daughter's health. His wife begrudgingly sacrifices domestic comforts, while their darling boy Toby, their daughter Jenny, and their dog Crust have the time of their lives roaming in the wild. Meeting wildlife however has its pros and…