War is on the doorstep as a young married couple decide their only option is to abandon their home and hide out in the wild Scottish Highlands.
Hugh and Terry gather supplies and head for an isolated shelter that only they know. While they count the days by etching marks into a rock wall, they must secure their shelter not only from prying eyes but the approaching winter. But with the onset of winter, a post-apocalyptic terror creeps ever nearer. They have escaped the war so far, yet what happens if the war comes to them?