On the five-year anniversary of his wife Hannah's disappearance, small-town cop Noah Sheridan takes his son Milo to a local ski resort for some much needed father-son time. In a blink, the power grid goes out. Phones and cars stop working. What starts as a Christmas holiday soon turns deadly. When an impending blizzard cuts off the town from the rest of civilization, it'll take everything Noah has to keep his family and friends alive. Nature's wrath is dangerous. So are the desperate people willing to do anything to survive.