Mike goes above and beyond to help a troubled young diver, offering not just a rescue but also emotional support and guidance.
Aired: Jan 4, 1958A test pilot is pinned down in his submerged cockpit 60 feet beneath the surf...
Aired: Jan 11, 1958Mike is faced with a heart-wrenching dilemma as he struggles to decide which ...
Aired: Jan 25, 1958Two divers are put to the test as they navigate a treacherous underwater chal...
Aired: Feb 1, 1958Two underwater geologists go missing, but one returns with a chilling account...
Aired: Feb 8, 1958A young girl's life is forever changed when she's saved from a near-drowning ...
Aired: Feb 15, 1958Kay Dalton's determination drives her to confront her intense ocean phobia an...
Aired: Feb 22, 1958A blast from the past arrives, sending Mike's world into a tailspin of intens...
Aired: Mar 1, 1958The experts on the Sonar Queen embark on a mission to solve the mystery of th...
Aired: Mar 8, 1958Mike rescues a young friend from the clutches of two unscrupulous treasure hu...
Aired: Mar 15, 1958Mike embarks on a perilous underwater mission to retrieve a lost rocket nose ...
Aired: Mar 22, 1958A relentless pursuit unfolds as Mike tracks down a powerful killer whale that...
Aired: Mar 29, 1958Mike undertakes a treacherous operation to liberate a Russian scientist who h...
Aired: Apr 5, 1958A group of divers venture into the Caribbean waters, diving to various depths...
Aired: Apr 12, 1958Nelson arrives in Santa Pueblo, a Latin American port, to investigate a recen...
Aired: Apr 19, 1958The charismatic inventor teams up with Nelson on his boat, introducing a revo...
Aired: Apr 26, 1958A poacher is terrorizing the Silver Springs, Florida wetlands, prompting Mike...
Aired: May 3, 1958Mike's anxiety escalates as a mesmerizing aquatic carnival ride pushes the bo...
Aired: May 10, 1958Mike goes above and beyond to help a troubled young diver, offering not just ...
Aired: May 17, 1958A treasure hunter is recruited to spearhead a perilous diamond excavation mis...
Aired: May 24, 1958A massive alligator breaks free from a wildlife exhibit in Silver Springs, Fl...
Aired: May 31, 1958A mysterious mine ship emerges from the depths, landing in a California harbo...
Aired: Jun 7, 1958A renowned underwater investigator is summoned by the Florida State Police to...
Aired: Jun 14, 1958Mike delves into the folklore of a mythical mermaid rumored to inhabit an und...
Aired: Jun 21, 1958A father-daughter duo teams up with Mike Nelson to explore Costa Rica's under...
Aired: Jun 28, 1958Nelson's expedition to uncover uranium deposits in a riverbed takes an unexpe...
Aired: Jul 5, 1958Nelson travels to Puerto Blanco in South America, where he shares his experti...
Aired: Jul 12, 1958A scientist's desperate situation motivates Mike to uncover the truth behind ...
Aired: Jul 19, 1958A beach day turns deadly when a group of friends' kids uncover a hidden dange...
Aired: Jul 26, 1958Mike embarks on a daring mission to rescue a Latin American diplomat and his ...
Aired: Aug 2, 1958A devastating tempest unleashes its fury, upending a vessel and sending it ca...
Aired: Aug 9, 1958A stuntman pushes his limits as he strives to shatter the record for the long...
Aired: Aug 16, 1958Mike's curiosity gets the better of him as he ventures into the waters near a...
Aired: Aug 23, 1958Mike delves into the investigation of a puzzling drowning, compelled to unrav...
Aired: Aug 30, 1958Mike tackles a monumental challenge, transforming a massive underwater peak i...
Aired: Sep 6, 1958A diver from Mike's supervised group vanishes during an underwater excursion,...
Aired: Sep 13, 1958Mike's investigation into a sunken ship's insurance claim sets off a chain re...
Aired: Sep 20, 1958A mysterious sea monster is inexplicably propelling massive whales into the a...
Aired: Sep 27, 1958Mike infiltrates a covert operation to track down the culprits behind the the...
Aired: Oct 4, 1958A brave explorer braves treacherous seas to claim a valuable manganese deposi...
Main Cast
Guest Starring
