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When Diana seals off the Open City with an impenetrable force field which destroys humans on contact, Donovan and Ham must kidnap the alien genius responsible for its development.
First Air Date : Oct 26, 1984
Last Air date : May 24, 1985
Episode : 19 Episode
Season : 1 Season
Runtime: 45:14 minutes
Studio: NBC
Country: United States of America, Canada
