
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.
7.7
7.1
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6.0
7.1
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7.7
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7.1
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5.9
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7.5
5.9
6.2
5.8
6.3