The TARDIS picks up a distress call and the Doctor and Sarah arrive on the planet Zeta Minor. There they discover that a Morestran geological expedition has fallen prey to an unseen killer and only the leader, Professor Sorenson, remains alive.
Commentary - With actors Tom Baker, Elisabeth Sladen and Prentis Hancock
producer Philip Hinchcliffe.
"Making Of" Documentary
A second "Making Of" Documentary from an actor's perspective
Behind-the-Scenes footage
Programme Trailers
DVD Coming Soon Trailer
Photo Gallery
Subtitles
Production Information Subtitles
