Season 2

E1. The Alcatraz Story

Jan 4, 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

Jan 11, 1959

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

E3. Underwater Security

Jan 18, 1959

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

E4. Underwater Labyrinth

Jan 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

Feb 1, 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

Feb 8, 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

Feb 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

Feb 22, 1959

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

E9. Jettisoned

Mar 1, 1959

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

E10. Murder at 60 Feet

Mar 8, 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

Mar 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

Mar 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

Mar 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

Apr 5, 1959

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

E15. Nerve Gas

Apr 12, 1959

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

E16. Strange Salvage

Apr 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

Apr 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

May 3, 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

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

May 17, 1959

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

E21. Cave Diving

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

Jul 1, 1959

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

E23. Underwater Shrine

Jun 7, 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

Jun 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

Jun 21, 1959

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

E26. Sea Serpent

Jun 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

Jul 5, 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

Jul 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

Jul 19, 1959

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

E30. Port Security

Jul 26, 1959

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