A preacher is accused of adultery and he and his followers are chased out of town and become stranded in an isolated forest which is haunted by the spirits of long dead Native Americans.A reverend, Will Smythe, and his followers are chased out of town after Smythe is accused of adultery and polygamy. Joined by a rugged woodsman, Marion Dalton, who wants his cheating wife, the group ventures into a valley, where dwells an ancient evil spirit. As members of the group start to disappear, the witch-bred, insane Leah must discover how to thwart the spirit.