"Frontios buries its own dead", or so the saying goes. The Doctor, Turlough and Tegan are forced into landing on the remote planet of Frontios, a human colony where deaths go unaccounted for. What lies beneath the surface, dragging its victims down?

Credits

Ron JonesDirector

Peter DavisonThe Doctor

Janet FieldingTegan Jovanka

Mark StricksonVislor Turlough

Jeff RawlePlantagenet