The Doctor takes Peri to Titan 3, a desolate hunk of rock in space where he hopes to find some solitude for a while. Instead he finds the lone but unconscious survivor of a recent spaceship crash in sight of a mound-shaped complex where no formalised structure should exist.
Quest roles:
Kevin McNally(Hugo Lang), Maurice Denham(Edgeworth / Azmael), Edwin Richfield(Mestor), Dennis Chinnery(Sylvest)