Whilst investigating the loss of a submarine, the crew of Stingray are captured by their new enemy, King Titan of Titanica, the leader of an underwater race called the Aquaphibians, who declares war on mankind.
Marineville is targeted by a series of missiles fired from a seemingly uninhabited island, Stingray is sent to investigate but the crew are captured by an underwater race, who torture them for information on Marineville defenses.
When a old Galleon is spotted in the middle of the ocean, Commander Shore joins the Stingray crew to investigate, but they unknowingly walk into a trap set up by an undersea pirate.
When Admiral Jack Denver, an old buddy of Commander Shore, is frightened by what appears to be the Loch Ness monster whilst fishing in Scotland, he uses his position to order Stingray to investigate the long running mystery.
When Admiral Denver announces his opinion that the WASPs of today would not be able to handle an old-time sailing vessel, Commander Shore takes this as a challenge and assigns Phones and Lieutenant Fisher to the Admiral's crew.
When a boastful naval Captain arrives in Marineville to demonstrate a new missile, he and Troy immediately experience a clash of personalities. Meanwhile, Surface Agent X-Zero sabotages the test missile by loading it with real explosives.
Agent X-2-Zero creates a false underwater sounding luring Stingray away form a mission an attempt to get Phones competency called into question Troy must fight to clear his friends name before Phones is dismissed from the WASPs.
After rescuing two stranded aquanauts, Troy finds a load of jewels and becomes a rich, selfish snob. He turns his back on the WASPs and builds a palace on the ocean floor where he bosses his friends around.
When Titan hears that Duke Dexter, currently the world's most famous pop singer, is visiting Marienville, he arranges for Agent X-2-Zero to kidnap him.
Stingray and its crew are sent to look for the missing Tajmanon temple in Africa, after it mysteriously vanishes and evidence points to a certain tribe as the culprits. The situation quickly worsens when the crew find themselves captured.
Troy promises an orphaned son of a recently deceased WASP aquanaut a Christmas to remember at Marineville, whilst the Stingray crew tries to solve the mystery surrounding a mysteriously abandoned enemy craft.
Learning that a jazz group is to give a concert in the undersea city of Aphony, where Marina's father lives, Surface Agent X20 plants a bomb in the group's bass.
Commander Shore keeps having nightmares about the time when he was crippled in a sea battle with an underwater craft five years ago and rescued by a mysterious stranger.
Just as an aircraft begins its approach towards a new airfield, the light from a disused lighthouse comes on, confusing the pilot and causing him to crash.
An undersea civilization, the Solarstars, create a weapon capable of obliterating entire islands, and the crew of Stingray must destroy this vessel, before it destroys them first.
Troy falls asleep, whilst on stand by duty, and dreams of a meeting between him and a group of undersea cavemen who have found the cargo of a crashed ship, the Shenandoah, a vessel which was carrying radioactive material.
Falling asleep whilst on duty, Troy has a dream in which he, Phones and Marina are inexplicably shrunk and stumble across preparations for a meeting of all of the WASP's undersea enemies.
When Phones buys a Treasure map for $500, he inadvertently causes Stingray to go of course and on an adventure involving undersea pirates, who were using the treasure as bait and imprisons the Stingray crew.
When a seemingly indestructible craft is sighted heading towards Marineville on a collision course, the eccentric Professor Burgoyne is called in to help develop a new super missile with which to destroy it.
The Stingray crew is assigned to make monthly visits to Professor Darren and his team, who have developed a method for making gold from minerals taken from the sea bed.
When an undersea alien named Gadus kidnaps World Navy Admiral Carson and his wife from their remote island home, Troy, Phones and Marina head off on a rescue mission in Stingray.
Commander Shore appears to be a traitor after Marineville's security has been breached. This forces Troy Tempest to arrest his commanding officer and causes heartbreak for Atlanta Shore. However, just when the situation seems to be resolved, a complication occurs.
After receiving the 'Aquanaut of the Year' award, Troy finds himself part of a 'This is Your Life' programme where he reminisces some of his greatest adventures.
While waiting for Atlanta and Marina, Commander Sam Shore shows to Admiral Denver films showing the previous missions that Troy Tempest and Phones had with the submarine Stingray.
