A group of Norwegian friends led by Med student Martin and his girlfriend Hanna, head to a remote cabin in the Oksfjord mountains for an Easter vacation filled with snowmobiling and relaxation. Upon arrival, the carefree atmosphere soon turns eerie as they find an old box filled with valuables and trinkets, and a mysterious hiker appears at their door that night, recounting the dark history of the region. The hiker tells a tale of dread: during World War II, German soldiers, led by the ruthless Standartenführer Herzog, occupied the area, brutalizing the local population before meeting their demise in the cold mountains, their stolen loot never recovered. Unsettled by this tale of cruelty and greed, the friends dismiss it as a local legend, unaware of the grim reality that surrounds them.

The following day, the group splits up to enjoy the snowy landscape, but a series of grisly discoveries indicates that the hiker's story was more than just folklore. As daylight wanes, they are blindsided by an undead force, the resurrected Nazi soldiers, still patrolling the snow-capped peaks with a bone-chilling vendetta. Tensions mount as the group must band together to fend off the relentless assault of these zombified antagonists, seasoned from wartime atrocities and now hungering for vengeance. The cabin becomes a besieged fortress as the friends struggle to defend themselves with whatever means available, realizing that the blood-stained snow is the least of the horrors that this vacation might bring.