My views Plot Hopper, an archaeology professor, is exploring a remote cave system on the trail of missing hippies from the 1970s. After discovering what appears to be a cowboy paused in place in a tunnel, he returns to town and dismisses his graduate students, Taylor and Jackie, stating that their research is done. Several days later, as Hopper has not returned, Taylor and Jackie go looking for him, with their friend Cara, who brings her sister, Veeves, and her friend Furby. Following Hopper's trail to the campsite by a cave, they find an entrance with climbing ropes leading inside. They decide to follow it, but Furby chooses to stay behind as backup for the base camp. They lower themselves into the cave, hearing strange noises. When Furby does not answer their radio calls, Jackie tries to climb back out, but the rope frays, and she falls, injuring herself and Taylor. Calling for help, they receive a transmission from inside the cave and follow it. At a di...