Watch Time of the Wolf

On the eve of a global ecological cataclysm a family of four travel to their wilderness cabin outside of the city to escape the calamity that is befalling the earth. With the water contaminated, most of the animals burned and the environment totally destroyed, little hope remains. Upon arriving at the cabin the family finds it has been invaded by strangers, violent ones. Now they must find help, and survive the night until morning when a train promises to allow them to escape to safety but first they have to make it to the train station . . . and to dawn.