The Coven, ancient followers of Satan, arise from decades of hiding with new plans and old ambitions of Earth domination. Using advanced technology and clever misdirection, claiming to be a group trying to save the planet, they recruit followers. Tad Holder and his girlfriend are attracted and join a local Martins Landing chapter. After a series of animal and then human sacrifices, Tad grows suspicious. When Alice Fay disappears, he looks for help to find her. Suddenly, with no time left, he realizes she is the next sacrifice.