Joan Huntar is a successful real estate developer, and when she stumbles upon an old summer camp that has been abandoned for years, she sees an opportunity to turn it into a profitable resort. However, she soon realizes that the property has a dark history of supernatural worship and human sacrifice. Despite the warnings from locals and her own instincts, Joan decides to go ahead with her plans.
As construction begins on the camp, strange occurrences start happening, and the workers begin to experience terrifying visions. When a group of friends arrives for a celebration weekend, things take a turn for the worse. The team uncovers an ancient structure that is believed to be the mythical Stonehenge of America. As a result, deadly spirits are awakened, and they begin to possess people, kill again to gain control of this supernatural gateway.
Joan and her family find themselves trapped on the property, unable to escape the wrath of these vengeful spirits. As the terrifying reality of the situation sets in, Joan must fight to keep her family and friends alive. They quickly discover that the spirits will stop at nothing to keep the gateway open, and the battle for survival becomes increasingly difficult.
With the help of a local historian and a spiritualist, Joan learns the truth about the camp's dark past and what they must do to close the gateway before it's too late. Together, they must confront the spirits from beyond and put an end to their deadly reign. Will they be able to do it before it's too late? A Deadly Legend is a suspenseful and bone-chilling horror movie that will keep you on the edge of your seat until the very end.