Joan Huntar, a real estate developer, buys an old summer camp. However, the property has a dark history of supernatural worship and human sacrifice. A celebration weekend turns deadly when construction uncovers the mythical Stonehenge of America. Deadly spirits are awakened and kill to gain control of this supernatural gateway. Unable to escape, Joan and her family must fight for survival and defeat the spirits from beyond.

A campfire story comes to life for a group of counselors on the last day of summer at Camp Briarbrook.