After looting a Native American burial site in the Old West, a hunter unwittingly unleashes a shape-shifting demon. Once thought to be only a legend, it rises from the grave to wreak vengeance on those who cross its path.

Weekend campers, an escaped convict, young lovers and a police officer experience a night of terror when a hostile visitor from another world descends on a small Arizona town.

The first World War rages on when a group of American soldiers find a mysterious artifact that can summon the ancient evil of the Krampus. After the men are killed in action, the artifact is sent to the commanding officer's widow who is a teacher at a small-town orphanage. The orphans accidentally summon the Krampus and the teacher, and her pupils are forced to battle this ancient evil.