- 1
The Alcatraz Story
Mike trains three brothers in the use of scuba gear, unaware that they plan to break a fourth sibling out of Alcatraz.
- 2
Operation Greenback
Mike unwittingly shares his explosives expertise with an old navy buddy who is planning an underwater bank heist.
- 3
Underwater Security
While testing the coastal security of a rocket fuel plant, Mike discovers a pair of saboteurs.
- 4
Underwater Labyrinth
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.
- 5
Monte Cristo
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.
- 6
The Stunt
An overconfident swimming champion endangers both herself and Mike when she challenges him to an underwater race to Catalina.
- 7
Diving for the Moon
Mike and a group of astronauts-in-training are stranded on the seabed when a hurricane blows their boat away.
- 8
The Search
Mike comes to the rescue of a scuba diver who has been trapped in a kelp bed while spear fishing.
- 9
Jettisoned
Mike races to recover a ditched nuclear warhead before sea water corrodes the casing.
- 10
Murder at 60 Feet
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.
- 11
Air Pockets
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.
- 12
The Dam
While checking the underwater security of a new dam, Mike discovers a bomb that has been placed in an intake valve.
- 13
Dock Fire
In an effort to prevent a dock fire from igniting chemicals stored in a warehouse, Mike swims into the building through an intake pipe.
- 14
The Persuaders
Drug smugglers force Mike at gunpoint to help them retrieve a sunken shipment of narcotics.
- 15
Nerve Gas
After discovering a sunken Japanese submarine, the amateur skin diver who found it goes violently berserk.
- 16
Strange Salvage
Mike investigates the deaths of a pair of divers who were murdered after discovering a sunken yacht laden with jewels.
- 17
Underwater Survey
While looking into the possibility of linking two Latin American lakes by a canal, Mike runs afoul of rebel guerillas.
- 18
Underwater Curtain
Mike discovers a submarine off the Panama coast that is a base of operations for divers planning to destroy the Panama Canal.
- 19
Hermes
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.
- 20
The Briefcase
A man tricks a scientist into dropping a top-secret folio overboard, where a confederate can retrieve it.
- 21
Cave Diving
Mike attempts to rescue a geologist who has been trapped in an underwater cave by a sudden landslide.
- 22
Water Ski Show
Mike investigates the mysterious death of the featured performer in a water ski show during the act's underwater finale.
- 23
Underwater Shrine
Mike and a pair of archaeologists risk the anger and booby traps of islanders while exploring underwater caves in the Caribbean.
- 24
Chain of Evidence
Latin American revolutionaries recruit Mike to recover the body of their murdered leader from the palace lagoon in order to ignite an uprising.
- 25
Treasure Hunt
A young skindiver is found murdered after stealing lobsters from an elderly fisherman as an initiation stunt.
- 26
Sea Serpent
Mike defies tales of a mysterious sea serpent when he searches for a shipment of stolen liquid explosives in Arabia.
- 27
The Getaway
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.
- 28
Underwater Ejection
A freak accident endangers a man's life during the test of Mike's new method of retrieving sunken ICBM nose cones.
- 29
The Female
A beautiful woman plots revenge against Mike after flunking out of his class for scuba diver instructors.
- 30
Port Security
Mike tries to break a ring of drug traffickers who are smuggling heroin into the country in ballast tanks.
- 31
Underwater Park
Someone attempts to kill Mike while he's scouting out a site for an underwater marine preserve.
- 32
Underwater Unit
Mike is recruited to train a pair of divers for an urgent secret assignment.
- 33
Proof of Guilt
Mike uses an underwater TV camera setup to nab thieves who are robbing a Hawaiian girl's pearl beds.
- 34
Chained
Mike stands by to assist an undercover man in his assignment to infiltrate an illegal alien-smuggling ring.
- 35
Ransom
A husband-wife team steal and then ransom some computer tapes necessary to a plant's operations.
- 36
Oil Island
A careless salvage diver is trapped on the deck of a sunken freighter by some lead cable.
- 37
Base of Operations
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.
- 38
Kelp Forest
A coastal fisherman wages a private war against kelp harvesters, blaming them for ruining the fishing grounds necessary to his livelihood.
- 39
The Raft
Mike dives onto a sunken freighter loaded with nitro, planning to detonate the cargo before it drifts away into the shipping lanes.