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A Naval vessel shoots down a UFO in the Atlantic, but the Admiralty rejects further investigation into the incident. Straker suspects a cover up and wants to know why, so Foster courts Admiral Sheringham's secretary, Sarah Bosanquet. What they discover could mean the end of all life on Earth...
First Air Date : Sep 16, 1970
Last Air date : Mar 15, 1973
Episode : 26 Episode
Season : 1 Season
Runtime: 48 minutes
Studio: Associated Television
Country: United Kingdom, United States of America
Cast: Ed Bishop
Crew: