A detail of random people are told that they are a part of a live testing for data on their reactions in the woods without any technology at their disposal . . . when in reality they are the stars of a bored and twisted family who have gathered together for the holidays to watch them all die.

Long-term couple Simon and Jason, along with daddy-ish Cooper and his boy du jour, escape to a mountain cabin for a three-day weekend away from their hectic city lives. Looking to spice up this long-standing tradition, they add a special twist to this years retreat – each of them must invite one attractive single friend to their mountain getaway.