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An industrial accident traps Kimball and some government workers underground. A member of the trapped group wants to turn Kimball in as soon as they are rescued. To add to Richard's problems, Lt. Gerard is waiting above at the only exit.
First Air Date : Sep 17, 1963
Last Air date : Aug 29, 1967
Episode : 120 Episode
Season : 4 Season
Runtime: 60:51 minutes
Studio: ABC
Country: United States of America