Arriving on Space Station Nerva in its distant past, the Doctor, Sarah and Harry find its crew threatened by a mysterious plague. Discovering that things are not as they seem, they uncover a Cyberman plot to destroy Voga, planet of gold.
Made in GB
5.7/10
1975
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Cast
Tom Baker
As Doctor Who
Elisabeth Sladen
As Sarah Jane Smith
Ian Marter
As Harry Sullivan
Ronald Leigh-Hunt
As Commander Stevenson
William Marlowe
As Lester
Kevin Stoney
As Tyrum
David Collings
As Vorus
Alec Wallis
As Warner
Michael Wisher
As Magrik
Christopher Robbie
As Cyber-Leader
Melville Jones
As First Cyberman
Brian Grellis
As Seprah
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