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Plato, the most advanced computer in the world, which could be used to target intercepting missiles, keeps breaking down. The body of a professor on the team is found within.
First Air Date : Jan 07, 1961
Last Air date : May 21, 1969
Episode : 161 Episode
Season : 6 Season
Runtime: 50:60 minutes
Studio: ITV1
Country: United Kingdom
Cast: Patrick Macnee, Linda Thorson