At an exclusive, secluded North American ski resort up on Mount Rocky Summit, brutal slashing, severing and beheading on a group of teenagers are taking place and are believed to be the work of a mysterious skier dressed in black.
When his dysfunctional family clashes over the holidays, young Max is disillusioned and turns his back on Christmas. Little does he know, this lack of festive spirit has unleashed the wrath of Krampus: a demonic force of ancient evil intent on punishing non-believers.
On a quiet suburban street tucked within a 'safe neighborhood', a babysitter must defend a twelve-year-old boy from strangers breaking into the house, only to discover that this is far from a normal home invasion.
Upon receiving reports of missing persons at Fort Spencer, a remote Army outpost on the Western frontier, Capt. John Boyd investigates. After arriving at his new post, Boyd and his regiment aid a wounded frontiersman who recounts a horrifying tale of a wagon train murdered by its supposed guide -- a vicious U.S. Army colonel gone rogue. Fearing the worst, the regiment heads out into the wilderness to verify the gruesome claims.
When a young ski team training for the Olympics arrives at the remote and isolated Lost Mountain Ski Resort to focus on training, they're thrilled to find a retired Olympic skier is there to help them train. But their plans are halted when a scientist working at a nearby government lab arrives with the horrifying news that a top secret Government project has produced giant spiders and they have escaped, killing and eating everything in sight.
Steve, a young professional snowboarder, ruins a high-paying photo shoot by playing a silly prank. He, his girlfriend Branka and fellow snowboarder Joschi are left behind on the mountain. They seek shelter in an après-ski tavern that is hosting an all-night party. Things go from bad to worse when a scientific experiment unleashes an epidemic of zombies and mutant wildlife. This is mostly lost on the local drunkards, as they are not always easy to distinguish from zombies themselves. But Steve, Branka and Joschi have to find a way to survive this hellish night.