An emotionally wounded accountant decides to break away from routine and find his missing friend, who has left clues for him of her whereabouts throughout National Parks across the West.

Mankind is nearly extinct in this post-apocalyptic creature thriller. Most humans died from a deadly plague and the ice age they manufactured to eradicate it. A man named Vargas leads a group of survivors on a quest to reach Shangri-La, the last safe haven on Earth. However, they must fight through the cold, a mutant cult and a pack of deadly creatures to get there.