In prison the night before his execution, republican preacher Hugh Peter prepares to be hanged, drawn and quartered for treason

"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?

The cast and crew of Frontios reflect on the making of this story.