October 18, 1975
1h 40m
EN
David Maloney
Picking up a distress call from the edge of the known universe, the Doctor and Sarah Jane find themselves on Zeta Minor where a geological team has run afoul of some strange goings on...
Tom Baker
The Doctor
Elisabeth Sladen
Sarah Jane Smith
Frederick Jaeger
Sorenson
Ewen Solon
Vishinsky
Louis Marks
7
Prentis Hancock
Salamar
Graham Weston
De Haan
Louis Mahoney
Ponti
Michael Wisher
Morelli
Terence Brook
Braun
Tony McEwan
Baldwin
BBC
GB
