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S8, E8: The mind parasite within the Keller Machine becomes too powerful for the Master to control. It learns how to move of its own accord and goes on the hunt for new minds.
Sci-Fi · Feb 20, 1971 · 24 min
Information
- Released
- 1971
- Run Time
- 24 min
- Rated
- TV-PG
- Region of Origin
- United Kingdom
- © 1971 BBC
Languages
- Original Audio
- English (United Kingdom)
- Audio and Subtitles
- English (United Kingdom) (AAC, SDH)