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A Soviet satellite has crashed into the sea and its nuclear reactor must be disarmed before it causes a disaster. Two Soviet scientists come aboard Seaview to carry out the work -- but one of them is an imposter.
First Air Date : Sep 14, 1964
Last Air date : Mar 31, 1968
Episode : 110 Episode
Season : 4 Season
Runtime: 50:14 minutes
Studio: ABC
Country: United States of America
Crew: