Looking to make a splash with his research videos into the existence of Bigfoot, Jim and his girlfriend Kelly take a camping trip to the mountains surrounding Willow Creek, California, a small town where infamous footage of the supposed Sasquatch was filmed. Before long the couple is lost in the woods and discovers that someone or something is stalking them. With each passing night bringing unknowable danger, the two must use all of their cunning to try to make it out of the forest alive.