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S15:E17 - Underworld (1)

Underworld (1)

S15:E17
1978
5.5/10
IMDb

Deep space, an unknown time. The Doctor encounters the Minyans, survivors of a race the Time Lords unwittingly obliterated early in their own history. The Minyans are searching for their race's lost gene banks, a quest which takes them to the edge of the galaxy…

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