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A mysterious cloud is enveloping the Earth and causing massive Tsunami and other catastrophic environmental damage. Crane takes the flying sub in to find out the cause and is taken over by an evil alien. Once aboard, this alien tries to stop Nelson before he can destroy the cloud with nuclear weapons.
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:
