After the initial series of summer blizzards, the snowfall has decreased, but the temperatures continue to drop, the icy wind still blows, and with each passing day, the darkness lasts longer and longer.
It is in the darkness the monsters thrive.
Confined to the lake house and having no communication with the outside world, Grady and the others live every day in fear, questioning what the future holds. Will the snow melt? Will the sun ever rise? Can the wraiths be defeated?
But as the days turn to weeks, no answers come. Soon, the survivors' supplies lessen, and rather they're ready to or not, they must venture out into the snowy wasteland.