When expert tracker Ellis is sent to investigate stories of greyhound poisoning, he is shocked to come face-to-face with a strange feral boy, and a pack of what seem to be ghostly dogs. Returning to the forest with his animal-mind-reading partner Meriel, he is plunged into danger by the wild boy's lethal supernatural powers, which can freeze a man to death. Ellis' only chance of rescue is Meriel, but she is caught up in reliving her own secret past as a feral child.