Overview
Someone attempts to kill Mike while he's scouting out a site for an underwater marine preserve.
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2 - 1The Alcatraz Story January 04, 1959 -
2 - 2Operation Greenback January 11, 1959
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2 - 3Underwater Security January 18, 1959
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2 - 4Underwater Labyrinth January 25, 1959
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2 - 5Monte Cristo February 01, 1959
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2 - 6The Stunt February 08, 1959
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2 - 7Diving for the Moon February 15, 1959
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2 - 8The Search February 22, 1959
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2 - 9Jettisoned March 01, 1959
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2 - 10Murder at 60 Feet March 08, 1959
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2 - 11Air Pockets March 15, 1959
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2 - 12The Dam March 22, 1959
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2 - 13Dock Fire March 29, 1959
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2 - 14The Persuaders April 05, 1959
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2 - 15Nerve Gas April 12, 1959
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2 - 16Strange Salvage April 19, 1959
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2 - 17Underwater Survey April 26, 1959
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2 - 18Underwater Curtain May 03, 1959
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2 - 19Hermes May 10, 1959
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2 - 20The Briefcase May 17, 1959
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2 - 21Cave Diving May 24, 1959
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2 - 22Water Ski Show July 01, 1959
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2 - 23Underwater Shrine June 07, 1959
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2 - 24Chain of Evidence June 14, 1959
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2 - 25Treasure Hunt June 21, 1959
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2 - 26Sea Serpent June 28, 1959
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2 - 27The Getaway July 05, 1959
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2 - 28Underwater Ejection July 12, 1959
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2 - 29The Female July 19, 1959
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2 - 30Port Security July 26, 1959
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2 - 31Underwater Park August 02, 1959
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2 - 32Underwater Unit August 09, 1959
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2 - 33Proof of Guilt August 16, 1959
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2 - 34Chained August 23, 1959
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2 - 35Ransom August 30, 1959
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2 - 36Oil Island September 06, 1959
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2 - 37Base of Operations September 13, 1959
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2 - 38Kelp Forest September 20, 1959
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2 - 39The Raft September 27, 1959