E1 - Sixty Feet Below

Aired: January 04, 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

Aired: 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

Aired: 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

Aired: February 01, 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

Aired: February 08, 1958

Mike helps the Immigration Department Border Patrol break up an underwater border-running operation.

E6 - Female of the Species

Aired: February 15, 1958

A beautiful woman hires Mike to give her diving lessons for mysterious reasons.

E7 - Mr. Guinea Pig

Aired: February 22, 1958

An attractive magazine photographer hires Mike to assist her in getting pictures of a sunken barge off the coast of Mexico.

E8 - Sonar Queen

Aired: March 01, 1958

Hired to test a new electronic fish-finder, Mike encounters a village where every fish in the vicinity has disappeared.

E9 - Gold Below

Aired: March 08, 1958

A pair of ruthless treasure hunters dupes a young skin diver into helping them loot a sunken ship.

E10 - Recovery

Aired: March 15, 1958

Mike dives into the Caribbean to recover the lost nose cone from an ICBM rocket before enemy agents can get it.

E11 - Killer Whale

Aired: March 22, 1958

A killer whale is capsizing boats and endangering scuba divers and swimmers along a stretch of coastline.

E12 - Midget Submarine

Aired: 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.

E13 - The Shark Cage

Aired: April 05, 1958

Mike and two cameramen are imperiled when an irrationally jealous man drops their camera cage into shark-infested waters.

E14 - Hardhat

Aired: April 12, 1958

Mike competes with a pair of helmet divers to salvage a German submarine sunk off the coast of South America.

E15 - Continental Rift

Aired: April 19, 1958

A man claims to have invented a machine that can locate ships carrying gold.

E16 - The Poacher

Aired: April 26, 1958

Mike is nearly killed by a massive electrical jolt used by a poacher to kill fish in the Florida Everglades.

E17 - Girl in the Trunk

Aired: May 03, 1958

Mike comes to the aid of a female escape artist when her underwater stunt goes awry.

E18 - The Sponge Divers

Aired: 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.

E19 - Diamond River

Aired: May 17, 1958

Mike supervises a diamond diving expedition in South America, but discovers that his employers are poaching on someone else's property.

E20 - Alligator Story

Aired: May 24, 1958

A vicious alligator escapes from a wild animal show and takes refuge in the lake of a public park.

E21 - Magnetic Mine

Aired: 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.

E22 - Underwater Patrol

Aired: June 07, 1958

The State of Florida hires Mike to organize and train an underwater police force to deal with a series of underwater crimes.

E23 - Legend of the Mermaid

Aired: June 14, 1958

Mike investigates an underwater grotto said to feature a mermaid that lures men to their deaths.

E24 - Pressure Suit

Aired: June 21, 1958

A professor and his daughter hire Mike to help them search for a rare underwater plant in Costa Rica.

E25 - The Prospectors

Aired: 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.

E26 - The Hero

Aired: July 05, 1958

Mike is hired by a playboy sportsman to supervise their underwater shark ""safari"" in the waters off Peru.

E27 - Underwater Station

Aired: July 12, 1958

Mike finds a famous rocket scientist being held in an underwater prison by enemy agents.

E28 - The Lost Ones

Aired: 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.

E29 - Capture of the Santa Rosa

Aired: July 26, 1958

Mike leads a diving team in rescuing a Latin American diplomat and his family from kidnappers.

E30 - The Shipwreck

Aired: August 02, 1958

Mike and three other survivors share a life raft after a storm capsizes their boats.

E31 - The Big Dive

Aired: August 09, 1958

Mike's work on a movie prompts a fellow stunt diver to attempt a dangerous record-setting dive.

E32 - The Birthday Present

Aired: 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.

E33 - Dead Man's Cove

Aired: August 23, 1958

An underwater camera holds the key to determining whether a woman's drowning was accidental, as her husband claims, or not.

E34 - Explosion

Aired: August 30, 1958

Mike is hired to destroy an underwater offshore peak that is notorious for ripping the hulls out of passing ships.

E35 - The Amphibian

Aired: September 06, 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.

E36 - Lord Christobal

Aired: 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.

E37 - Decoy

Aired: September 20, 1958

Mike investigates reports of a sea monster off the coast of Mexico.

E38 - The Sea Has Ears

Aired: 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.

E39 - The Manganese Story

Aired: October 04, 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.