4th Jan 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.

11th Jan 1958

While investigating the cause of a mine flood that killed thirty men, Mike stumbles upon an air pocket with two survivors.

25th Jan 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.

1st Feb 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.

8th Feb 1958

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

15th Feb 1958

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

22nd Feb 1958

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

1st Mar 1958

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

8th Mar 1958

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

15th Mar 1958

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

22nd Mar 1958

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

29th Mar 1958

Mike plays commando in rescuing a scientist who had defected from Soviet kidnappers who are returning him to Moscow aboard a Pacific liner.

5th Apr 1958

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

12th Apr 1958

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

19th Apr 1958

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

26th Apr 1958

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

3rd May 1958

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

10th May 1958

Mike interrupts an underwater survey in the Gulf of Mexico in order to save a diver whose air line has become snarled.

17th May 1958

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

24th May 1958

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

31st May 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.

7th Jun 1958

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

14th Jun 1958

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

21st Jun 1958

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

28th Jun 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.

5th Jul 1958

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

12th Jul 1958

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

19th Jul 1958

A frustrated former athlete pushes his children to be Olympic swimmers, resulting in their becoming trapped in a cave by a rising tide.

26th Jul 1958

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

2nd Aug 1958

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

9th Aug 1958

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

16th Aug 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.

23rd Aug 1958

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

30th Aug 1958

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

6th Sep 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.

13th Sep 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.

20th Sep 1958

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

27th Sep 1958

The murder of a telephone company employee leads Mike to an underwater cable that is being tapped to access top-secret research Conferences.

4th Oct 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.