Overview

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...

Details

Cast

Tom Baker

Elisabeth Sladen

Frederick Jaeger

Ewen Solon

Prentis Hancock

Graham Weston

Louis Mahoney

Michael Wisher

Terence Brook

Tony McEwan