E1 - The Alcatraz Story

Aired: January 04, 1959

Mike trains three brothers in the use of scuba gear, unaware that they plan to break a fourth sibling out of Alcatraz.

E2 - Operation Greenback

Aired: January 11, 1959

Mike unwittingly shares his explosives expertise with an old navy buddy who is planning an underwater bank heist.

E3 - Underwater Security

Aired: January 18, 1959

While testing the coastal security of a rocket fuel plant, Mike discovers a pair of saboteurs.

E4 - Underwater Labyrinth

Aired: January 25, 1959

Mike is hired to retrieve a new guided-missile tracking device from a test boat sunk during a Florida hurricane, but finds that underwater thieves have beaten him to the punch.

E5 - Monte Cristo

Aired: February 01, 1959

As consultant on a remake of The Count of Monte Cristo, Mike finds that the emotions of the star and his stand-in may lead to disaster in the execution of a stunt.

E6 - The Stunt

Aired: February 08, 1959

An overconfident swimming champion endangers both herself and Mike when she challenges him to an underwater race to Catalina.

E7 - Diving for the Moon

Aired: February 15, 1959

Mike and a group of astronauts-in-training are stranded on the seabed when a hurricane blows their boat away.

E8 - The Search

Aired: February 22, 1959

Mike comes to the rescue of a scuba diver who has been trapped in a kelp bed while spear fishing.

E9 - Jettisoned

Aired: March 01, 1959

Mike races to recover a ditched nuclear warhead before sea water corrodes the casing.

E10 - Murder at 60 Feet

Aired: March 08, 1959

A man planning to murder his wife hires Mike to teach her to scuba dive so that he may lure her into a dangerous underwater current.

E11 - Air Pockets

Aired: March 15, 1959

Mike is hired to dive on a sunken freighter in New York Harbor in the hopes that some crew members may still be alive in air pockets.

E12 - The Dam

Aired: March 22, 1959

While checking the underwater security of a new dam, Mike discovers a bomb that has been placed in an intake valve.

E13 - Dock Fire

Aired: March 29, 1959

In an effort to prevent a dock fire from igniting chemicals stored in a warehouse, Mike swims into the building through an intake pipe.

E14 - The Persuaders

Aired: April 05, 1959

Drug smugglers force Mike at gunpoint to help them retrieve a sunken shipment of narcotics.

E15 - Nerve Gas

Aired: April 12, 1959

After discovering a sunken Japanese submarine, the amateur skin diver who found it goes violently berserk.

E16 - Strange Salvage

Aired: April 19, 1959

Mike investigates the deaths of a pair of divers who were murdered after discovering a sunken yacht laden with jewels.

E17 - Underwater Survey

Aired: April 26, 1959

While looking into the possibility of linking two Latin American lakes by a canal, Mike runs afoul of rebel guerillas.

E18 - Underwater Curtain

Aired: May 03, 1959

Mike discovers a submarine off the Panama coast that is a base of operations for divers planning to destroy the Panama Canal.

E19 - Hermes

Aired: May 10, 1959

A Greek sponge diver and his pretty girlfriend lay a minefield for Mike, fearful that he will interfere with their discovery of a valuable statue on the Mediterranean seabed.

E20 - The Briefcase

Aired: May 17, 1959

A man tricks a scientist into dropping a top-secret folio overboard, where a confederate can retrieve it.

E21 - Cave Diving

Aired: May 24, 1959

Mike attempts to rescue a geologist who has been trapped in an underwater cave by a sudden landslide.

E22 - Water Ski Show

Aired: July 01, 1959

Mike investigates the mysterious death of the featured performer in a water ski show during the act's underwater finale.

E23 - Underwater Shrine

Aired: June 07, 1959

Mike and a pair of archaeologists risk the anger and booby traps of islanders while exploring underwater caves in the Caribbean.

E24 - Chain of Evidence

Aired: June 14, 1959

Latin American revolutionaries recruit Mike to recover the body of their murdered leader from the palace lagoon in order to ignite an uprising.

E25 - Treasure Hunt

Aired: June 21, 1959

A young skindiver is found murdered after stealing lobsters from an elderly fisherman as an initiation stunt.

E26 - Sea Serpent

Aired: June 28, 1959

Mike defies tales of a mysterious sea serpent when he searches for a shipment of stolen liquid explosives in Arabia.

E27 - The Getaway

Aired: July 05, 1959

After one of their number is wounded in the robbery of a beach side casino, a team of thieves kidnap a doctor's wife in order to lure the physician into a trap.

E28 - Underwater Ejection

Aired: July 12, 1959

A freak accident endangers a man's life during the test of Mike's new method of retrieving sunken ICBM nose cones.

E29 - The Female

Aired: July 19, 1959

A beautiful woman plots revenge against Mike after flunking out of his class for scuba diver instructors.

E30 - Port Security

Aired: July 26, 1959

Mike tries to break a ring of drug traffickers who are smuggling heroin into the country in ballast tanks.

E31 - Underwater Park

Aired: August 02, 1959

Someone attempts to kill Mike while he's scouting out a site for an underwater marine preserve.

E32 - Underwater Unit

Aired: August 09, 1959

Mike is recruited to train a pair of divers for an urgent secret assignment.

E33 - Proof of Guilt

Aired: August 16, 1959

Mike uses an underwater TV camera setup to nab thieves who are robbing a Hawaiian girl's pearl beds.

E34 - Chained

Aired: August 23, 1959

Mike stands by to assist an undercover man in his assignment to infiltrate an illegal alien-smuggling ring.

E35 - Ransom

Aired: August 30, 1959

A husband-wife team steal and then ransom some computer tapes necessary to a plant's operations.

E36 - Oil Island

Aired: September 06, 1959

A careless salvage diver is trapped on the deck of a sunken freighter by some lead cable.

E37 - Base of Operations

Aired: September 13, 1959

A husband and wife team of photojournalists ignore Mike's warnings about diving on a sunken ocean liner and are imperiled by the pressures of the deep.

E38 - Kelp Forest

Aired: September 20, 1959

A coastal fisherman wages a private war against kelp harvesters, blaming them for ruining the fishing grounds necessary to his livelihood.

E39 - The Raft

Aired: September 27, 1959

Mike dives onto a sunken freighter loaded with nitro, planning to detonate the cargo before it drifts away into the shipping lanes.