Marine Boy's wrist radio is removed by a playful baby dolphin and, as a result, he cannot hear Bullton and Piper's call for help.
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Jim Sumorbond tries to steal Professor Fumble's special ultra-freezer; the getaway truck crashes into the ocean and the ultra-freezer in the back causes huge icebergs to form.
Men disguised as Ocean Patrol members enter an underground fort in an attempt to steal gold and all the persons in the fort are held captive by them.
Two ships collide in a fog and the nuclear-powered ship is robbed of its nuclear fuel.
Professor Fumble invents a mini-electronic translator for Splasher to use to speak with humans.
Jesse Jamison and his men take over a train, which is carrying a shipment of rubies, on the Underwater Railroad.
Captain Kiddo and his pirate ship discover a castle filled with treasure that is guarded by an undersea lion on the ocean floor.
Marine Boy's wrist radio is removed by a playful baby dolphin and, as a result, he cannot hear Bullton and Piper's call for help.
Dr. Mum is captured on a submarine and forced by Mr. Robbinsteel to build an electronic brain; Marine Boy rescues Dr. Mum, the submarine is blown up, but the brain is still intact.
Clicli discovers a ship which sends out a roll of microfilm and shows it to Marine Boy; the film shows Miniprof's microwave machine that can shrink anything.
A storm causes an oil tanker to spill oil in the sea, jeopardizing the sea life; Octane builds a spill-proof Tubsub Tanker Sub.
When the evil Despotic invents a super electronic brain called Tremendo, he plans world conquest; when he intervenes, Marine Boy is knocked unconscious and kidnapped.
A supposedly haunted island is under the domination of the mysterious Captain Wraith.
Marine Boy faces the greatest challenge of his career in the Ocean Patrol when a ship, the ghost of a heavy cruiser, haunts the seas; wherever it appears, a disaster follows.
Guppy, an enormous pet whale, is kidnapped by Cuthbert Tuthsum, a butler with ambitions toward evil.
Dr. Bulthrod's plane, carrying precious specimens of a rare plankton, is shot down; the plankton escapes into the sea, where it grows and threatens to engulf the entire Earth.
When Professor Puddin builds his complex for extracting gold from sea water, the infamous Dr. Al Kemy devises an evil plan.
When Professor Fumble invents a robot that makes diamonds out of coal, the evil Mr. Carbona sees his chance to control the world's economy.
Professor Fumble's greatest invention, a weather observation rocket, is stolen by Lard Greedfat.
An army of red dolphins threatens the ocean depths; their goal is the destruction of Ocean Patrol.
Professor Fumble invents a fabulous new robot, but evil forces build an army of robots.
When a mysterious treasure map falls into the hands of the Ocean Patrol, the crew of P-1 and Marine Boy sail for the Island of Treasure.
Flim Flamboyant schemes to become a billionaire by robbing the underwater oil pipeline.
The ultrasonic voices of Splasher and his friends awaken a dangerous monster plant which has been sleeping for millions of years.
A cruise ship carrying Professor Fumble and the world's greatest scientists disappears.
The powerful pirate, Captain Kiddo, is challenged by the Queen of Pirates to see if he can defeat Marine Boy.
An Ocean Patrol boat is found with the crew missing; the search takes Marine Boy to a strange and forbidding land of ancient Vikings, where they are living under the domination of a cruel queen.
When huge mysterious icebergs appear in the tropical sea, the Ocean Patrol is alerted.
Jocko Nape builds a tank equipped with a hyper-uranium bomb which he plans to set off in the middle of the ocean, thereby creating tidal waves big enough to destroy whole cities.
Captain Aquarius has captured some unusual sea creatures for his underwater zoo; in the deepest part of the ocean lives Zeoclode, avenger of the sea, who tries to rescue his friends.
Professor Ike Conoclast has perfected a secret formula for a new secret weapon, but when it is about to be stolen from him, he hides each half of the formula in a different place.
When a castaway whom Marine Boy rescues tells him of a fabulous patch of golden seaweed, they set off together to find the fantastic plant.
Marine Boy is blinded temporarily by a flash of light, which a gang of criminals is using to escape detection of their crimes.
The Brainstorm, a super electronic computer, suddenly becomes so powerful that it can control not only other machines, but human minds as well.
Piper is captured by the fiendish Dr. Diablo; Diablo plans to save mankind from a future flood by installing gills in their bodies so they can live underwater.
Two master criminals escape from an underwater prison farm and use the P-1 as their getaway boat with Bullton and Piper as hostages.
Suddenly, the desert is flooded with seawater; the Ocean Patrol believes that someone is illegally mining uranium beneath the desert.
After a supposedly unsinkable nuclear vessel disappears in a storm, Marine Boy suspects sabotage and begins a search.
Marine Boy's specially designed boat explodes before a race and signs point to sabotage via a remotely controlled missile.
During a flight, Tycoon spots a statue that turns out to hold a grand treasure.
Smirch and Capt. Slicker, plotting to steal uranium, swipe nuclear rock drills from the Ocean Patrol, but their actions cause an oil spill in the Mindanao Trench.
Marine Boy and Splasher show Dr. Mariner a time capsule they found and open it to reveal a document telling of a button that triggers tidal waves.
