E1
Sixty Feet Below
— · January 4, 1958
Mike tries to free the pilot of a downed jet from his watertight cockpit before his air runs out, without causing the man's death from the water pressure.
E2
Flooded Mine
— · January 11, 1958
While investigating the cause of a mine flood that killed thirty men, Mike stumbles upon an air pocket with two survivors.
E3
Rapture of the Deep
— · January 25, 1958
A grudge between two divers whom Mike is testing for underwater mining skills becomes a secondary issue when one of them contracts nitrogen narcosis.
E4
Mark of the Octopus
— · February 1, 1958
Before Mike can investigate the disappearance of a pair of skin-diving geologists, one turns up dead on the beach bearing marks resembling the suction valves of a giant octopus.
E5
The Sea Sled
— · February 8, 1958
Mike helps the Immigration Department Border Patrol break up an underwater border-running operation.
E6
Female of the Species
— · February 15, 1958
A beautiful woman hires Mike to give her diving lessons for mysterious reasons.
E7
Mr. Guinea Pig
— · February 22, 1958
An attractive magazine photographer hires Mike to assist her in getting pictures of a sunken barge off the coast of Mexico.
Sonar Queen
— · March 1, 1958
Hired to test a new electronic fish-finder, Mike encounters a village where every fish in the vicinity has disappeared.
Gold Below
— · March 8, 1958
A pair of ruthless treasure hunters dupes a young skin diver into helping them loot a sunken ship.
Recovery
— · March 15, 1958
Mike dives into the Caribbean to recover the lost nose cone from an ICBM rocket before enemy agents can get it.
Killer Whale
— · March 22, 1958
A killer whale is capsizing boats and endangering scuba divers and swimmers along a stretch of coastline.
Midget Submarine
— · March 29, 1958
Mike plays commando in rescuing a scientist who had defected from Soviet kidnappers who are returning him to Moscow aboard a Pacific liner.
The Shark Cage
— · April 5, 1958
Mike and two cameramen are imperiled when an irrationally jealous man drops their camera cage into shark-infested waters.
Hardhat
— · April 12, 1958
Mike competes with a pair of helmet divers to salvage a German submarine sunk off the coast of South America.
Continental Rift
— · April 19, 1958
A man claims to have invented a machine that can locate ships carrying gold.
The Poacher
— · April 26, 1958
Mike is nearly killed by a massive electrical jolt used by a poacher to kill fish in the Florida Everglades.
Girl in the Trunk
— · May 3, 1958
Mike comes to the aid of a female escape artist when her underwater stunt goes awry.
The Sponge Divers
— · May 10, 1958
Mike interrupts an underwater survey in the Gulf of Mexico in order to save a diver whose air line has become snarled.
Diamond River
— · May 17, 1958
Mike supervises a diamond diving expedition in South America, but discovers that his employers are poaching on someone else's property.
Alligator Story
— · May 24, 1958
A vicious alligator escapes from a wild animal show and takes refuge in the lake of a public park.
Magnetic Mine
— · May 31, 1958
An entire Mexican town is menaced by the presence of a derelict floating mine in its harbor that could ignite fumes from the local nitrate factory if it is detonated.
Underwater Patrol
— · June 7, 1958
The State of Florida hires Mike to organize and train an underwater police force to deal with a series of underwater crimes.
Legend of the Mermaid
— · June 14, 1958
Mike investigates an underwater grotto said to feature a mermaid that lures men to their deaths.
Pressure Suit
— · June 21, 1958
A professor and his daughter hire Mike to help them search for a rare underwater plant in Costa Rica.
The Prospectors
— · June 28, 1958
A pair of prospectors hire Mike to trace the source of radioactive fish with a Geiger counter in hopes of finding a uranium deposit.
The Hero
— · July 5, 1958
Mike is hired by a playboy sportsman to supervise their underwater shark ""safari"" in the waters off Peru.
Underwater Station
— · July 12, 1958
Mike finds a famous rocket scientist being held in an underwater prison by enemy agents.
The Lost Ones
— · July 19, 1958
A frustrated former athlete pushes his children to be Olympic swimmers, resulting in their becoming trapped in a cave by a rising tide.
Capture of the Santa Rosa
— · July 26, 1958
Mike leads a diving team in rescuing a Latin American diplomat and his family from kidnappers.
The Shipwreck
— · August 2, 1958
Mike and three other survivors share a life raft after a storm capsizes their boats.
The Big Dive
— · August 9, 1958
Mike's work on a movie prompts a fellow stunt diver to attempt a dangerous record-setting dive.
The Birthday Present
— · August 16, 1958
After locating a leak in a gas line and retrieving a young boy's sunken bicycle, Mike is beaten up and threatened by a gang of thugs.
Dead Man's Cove
— · August 23, 1958
An underwater camera holds the key to determining whether a woman's drowning was accidental, as her husband claims, or not.
Explosion
— · August 30, 1958
Mike is hired to destroy an underwater offshore peak that is notorious for ripping the hulls out of passing ships.
The Amphibian
— · September 6, 1958
A group of sportsmen hire Mike to supervise their skin-diving outing, whereupon one of them sneaks off and begins photographing secret Navy facilities.
Lord Christobal
— · September 13, 1958
Mike is hired by an insurance company to investigate the sinking of a freighter, but a murder indicates that someone doesn't want him to complete his task.
Decoy
— · September 20, 1958
Mike investigates reports of a sea monster off the coast of Mexico.
The Sea Has Ears
— · September 27, 1958
The murder of a telephone company employee leads Mike to an underwater cable that is being tapped to access top-secret research Conferences.
The Manganese Story
— · October 4, 1958
Mike discovers an important manganese deposit, but an ambitious young geologist, sharks, and an approaching hurricane threaten to silence him before he can inform the government.