Mike Nelson accepts a job to supervise a diving expedition for diamonds in South America, but soon rebels against his employers.
Aired: Jan 3, 1958Racing against time, Mike Nelson attempts a risky rescue of a test pilot trap...
Aired: Jan 10, 1958Mike travels 1500 miles inland to a flooded mine where two men are trapped in...
Aired: Jan 24, 1958While testing the skills of two divers, Mike is attacked by one of them, whom...
Aired: Jan 31, 1958Mike is asked to investigate when two underwater geologists disappear, one of...
Aired: Feb 7, 1958Mike Nelson rescues an unidentified girl from drowning. The Immigration Depar...
Aired: Feb 14, 1958Although Kay Dalton is terrified of the sea, she is determined to dive for a ...
Aired: Feb 21, 1958An old flame comes back into Mike's life, and she's nothing but trouble.
Aired: Feb 28, 1958Mike has been hired to test a machine dubbed "the fish-finder" on an experime...
Aired: Mar 7, 1958Mike comes to the aid of a young friend, whom has been fooled into working fo...
Aired: Mar 14, 1958Mike searches the ocean bottom for a gone-astray nose cone.
Aired: Mar 21, 1958Mike hunts down a killer whale that has been terrorizing a local coastal comm...
Aired: Mar 28, 1958Mike pilots a mini-submarine in an attempt to rescue a Russian scientist defe...
Aired: Apr 4, 1958Nelson is hired to study shark behavior at various depths and the effects of ...
Aired: Apr 11, 1958Nelson,brought to the Latin American port of Santa Pueblo,investigates a rece...
15. Marvelous Treasure Machine
Aired: Apr 18, 1958An overly energetic man appears on Nelson's boat and claims to have built a m...
Aired: Apr 25, 1958Mike assists the authorities in trying to apprehend a poacher operating in th...
Aired: May 3, 1958Mike has serious concerns regarding a dangerous, underwater, carnival magic act.
Aired: May 10, 1958Mike comes to the aid of a young diver - in more ways than one.
Aired: May 17, 1958Mike Nelson accepts a job to supervise a diving expedition for diamonds in So...
Aired: May 24, 1958Mike Nelson goes after a vicious alligator that escapes from a wild-animal sh...
Aired: May 31, 1958Mike Nelson learns of a derelict mine which has drifted into a California har...
Aired: Jun 7, 1958Mike Nelson is called in by the Florida State Police to help solve a series o...
Aired: Jun 14, 1958Mike investigates the legend of a mermaid located in an underwater cave off t...
Aired: Jun 21, 1958A professor and his daughter hire Mike Nelson to help them search for a rare ...
Aired: Jun 28, 1958Two prospectors (one of whom is at times violently paranoid about being cheat...
Aired: Jul 5, 1958To fund research for an "ocean plants into food products" project, Nelson agr...
Aired: Jul 12, 1958Mike discovers a kidnapped scientist being held in an underwater prison cell.
Aired: Jul 19, 1958Offshore near Santa Barbara,Nelson is testing a sea "scooter". Meanwhile,a kn...
Aired: Jul 26, 1958Mike attempts to rescue a kidnapped Latin American diplomat being held with h...
Aired: Aug 2, 1958An unexpected storm capsizes a boat.
Aired: Aug 9, 1958A stuntman tries to break the world's skin-diving record.
Aired: Aug 16, 1958Hoodlums attack Mike after he explores the waters around a pier.
Aired: Aug 23, 1958Mike tries to prove that a woman's drowning was not accidental.
Aired: Aug 30, 1958Mike is hired to make a molehill out of an underwater mountain.
Aired: Sep 6, 1958While underwater, a member of Mike's supervised diving party goes missing.
Aired: Sep 13, 1958Mike's life is targeted for murder during his insurance investigation of a su...
Aired: Sep 20, 1958Mike investigates reports of a sea monster, which is literally causing whales...
Aired: Sep 27, 1958Mike searches for the divers who are tapping top secret telephone communicati...
Aired: Oct 4, 1958Mike battles rough weather, sharks, bullets, and even a giant clam, as he sea...
