Two sisters, Jennifer and Lisa, arrive in the small Colorado town of Snowfield only to find it eerily deserted. As they explore, they come across several dead bodies and realize something sinister is at play. They manage to find a few survivors, including Sheriff Bryce Hammond and his deputies, who assist in uncovering the mystery behind the mass disappearances and deaths. With no communication to the outside world, they devise a plan to survive while seeking answers. They discover that the occurrences might be related to a dark entity responsible for the incidents.

Their investigation leads them to enlist the help of Dr. Timothy Flyte, an eccentric scientist who has theorized about ancient entities capable of destruction. As they delve deeper, they encounter nightmarish phenomena, raising the stakes for their survival. Realizing that their adversary may be more powerful than they had imagined, the group's resolve is tested as they face increasingly perilous challenges.