一伙银行劫匪在平安夜抢劫银行后躲进了一家汽车旅馆，然而他们不知道的是，在这个寒冷的圣诞夜，他们并不是唯一寻求庇护的最危险的东西。

Two scientists uncover a meteorite impact site in the Arctic tundra, but it kills one scientist and infects the other. A nearby base takes in the lone survivor whilst trying to understand what happened. The lone survivor may not be the person they think she is.