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In the story of a Los Angeles kidnapping, ransom and murder ring, retired scientists use sonar equipment to locate victims at the bottom of a reservoir.
First Air Date : Feb 23, 2020
Last Air date : Aug 13, 2023
Episode : 58 Episode
Season : 4 Season
Runtime: 21:14 minutes
Studio: HLN, Investigation Discovery
Country: United States of America
Cast: Bill Camp
