A blast triggered an avalanche that brought down a wall of snow in the Walcaster Mountains, blocking the only route out of a small mining town. When the weather finally allows residents to start clearing the pass, Warren brings along his son with the crew to help. But as they dig out the snow, they soon realize something is wrong. Terribly wrong. And there's no way to escape the horror they've unleashed.
A blast triggered an avalanche that brought down a wall of snow in the Walcaster Mountains, blocking the only route out of a small mining town. When the weather finally allows residents to start clearing the pass, Warren brings along his son with the crew to help. But as they dig out the snow, they soon realize something is wrong. Terribly wrong. And there's no way to escape the horror they've unleashed.