In the industrial wastelands of a post-cataclysmic world, the lives of the miners who maintain way-station no. 56 are difficult and uneventful. Hyu, the youngest member of the work force, has seen his last hopes for a better life fade away when suddenly everything changes with the arrival of a beautiful and enigmatic young woman in her horsegirl-drawn carriage. She is a tranceptor, acolyte of the mysterious sisterhood skilled in both the martial and erotic arts. In the course of her mission shrouded in mystery, she uses the voluptuous bodies of her slave girls to initiate the naive Hyu and matches her erotic talents against those of her fellow tranceptor, the luscious and treacherous Ravanna.