Dead of Winter (2014)
Plot: A group of adventure-seekers travels to the snowy wilderness of Colorado to participate in a high-stakes Geocaching treasure hunt with a $25,000 prize. Led by Damon, a brooding ex-con working as their guide, the contestants soon realize they aren't just looking for hidden containers—they are being hunted by a sadistic killer. The game turns into a brutal struggle for survival as the group is picked off one by one by traps and a mysterious sniper. Tensions rise among the survivors as they discover that their presence in the woods might be connected to a tragic event from their collective past.