When did Horizon Season 8 Episode 21 air?
Horizon Season 8 Episode 21 aired on September 27, 1971.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 8 · Episode 21
Your Country Needs You?
Sep 27, 1971·1h
This episode of Horizon looks at Britain's civil defense program, and to see if it is adequate in the event of a nuclear war.
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How long is Horizon Season 8 Episode 21?
This episode runs for approximately 60 minutes.
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