Stingray
Episodes are listed in production order, with the original airing position given in brackets.

1. (1.) Stingray (4 October 1964) Votes have not yet started for this episode
Whilst on patrol in the depths of the Pacific Ocean, the crew of the WASP submarine Stingray are captured by the underwater warlord Titan, ruler of the city of Titanica.
2. (34.) Plant of Doom (23 May 1965) Votes have not yet started for this episode
Marina's homesickness leads to a visit to her home city of Pacifica, where Surface Agent X20 has gifted Marina's father with a deadly plant. Marina brings it back to Marineville, and is subsequently suspected of treason when Atlanta falls ill.
3. (33.) Sea of Oil (16 May 1965) Votes have not yet started for this episode
Stingray is sent to investigate the destruction of three oil rigs, and Atlanta is taken hostage by the culprits.
4. (37.) Hostages of the Deep (13 June 1965) Votes have not yet started for this episode
A retired WASP admiral and his wife are taken prisoner by Gadus in an attempt to lure Stingray to his lair.
5. (24.) Treasure Down Below (13 March 1965) Votes have not yet started for this episode
6. (17.) The Big Gun (24 January 1965) Votes have not yet started for this episode
7. (36.) The Golden Sea (6 June 1965) Votes have not yet started for this episode
Titan takes umbrage when he learns of a Terranian craft extracting gold from the Pacific Ocean.
8. (3.) The Ghost Ship (18 October 1964) Votes have not yet started for this episode
An ancient galleon appears from nowhere, and Stingray is sent to investigate.
9. (32.) Count Down (9 May 1965) Votes have not yet started for this episode
Agent X20 infiltrates Marineville by claiming the ability to teach mute people to speak and succeeds in luring the Stingray crew to his 'clinic'.
10. (14.) The Ghost of the Sea (3 January 1965) Votes have not yet started for this episode
11. (2.) Emergency Marineville (11 October 1964) Votes have not yet started for this episode
Stingray is sent to investigate the source of a missile attack on Marineville, but when Marina's life is threatened, Troy is faced with a terrible choice - Marineville or Marina!
12. (4.) Subterranean Sea (25 October 1964) Votes have not yet started for this episode
When a geological survey discovers another sea below the Earth's crust, Stingray is sent to explore this strange new world.
13. (5.) Loch Ness Monster (1 November 1964) Votes have not yet started for this episode
An admiral returns from holiday in Scotland claiming to have seen the Loch Ness Monster and, in order to settle an argument with Commander Shore, immediately orders Stingray to investigate.
14. (29.) The Invaders (18 April 1965) Votes have not yet started for this episode
The Stingray crew are interrogated about Marineville's security and defences by a subterranean race, but are left puzzled when the aliens appear to give up quickly.
15. (28.) Secret of the Giant Oyster (11 April 1965) Votes have not yet started for this episode
Despite Marina's misgivings, Stingray is sent to retrieve a pearl from the world's largest oyster.
16. (9.) Raptures of the Deep (29 November 1964) Votes have not yet started for this episode
Running low on oxygen, Troy experiences a vivid dream where he is the richest man in the world and Atlanta, Marina and Phones all work for him in an undersea mansion.
17. (25.) Stand By for Action (21 March 1965) Votes have not yet started for this episode
A movie is being made about the Stingray crew and Troy feels put out when he is deemed a poor actor and is replaced by the heartthrob Johnny Swoonara.
18. (27.) The Missing Ships (4 April 1965) Votes have not yet started for this episode
Three disused freighters, due to explode, sink without a trace before the detonation time. Stingray is sent to investigate, and discovers a civilisation who use wrecks as their homes.
19. (7.) The Man from the Navy (15 November 1964) Votes have not yet started for this episode
Stingray is assisting World Navy captain Jacques Jordan with the testing of a new aquatic missile, but Jordan's boasting and flirtations with Atlanta soon irritate Troy.
20. (38.) Marineville Traitor (20 June 1965) Votes have not yet started for this episode
There is a traitor in the Marineville tower, stealing equipment and top-secret documents, and all avenues of investigation lead to Commander Shore himself!
21. (22.) Tom Thumb Tempest (28 February 1965) Votes have not yet started for this episode
Stingray is sent on a dangerous mission, but somehow ends up in Titan's aquarium, in a dining room where every one of Stingray's enemies is to gather!
22. (26.) Pink Ice (28 March 1965) Votes have not yet started for this episode
The oceans are freezing into pink ice and world leaders fear that a new ice age is beginning. Stingray is sent to investigate before all the world's water is affected.
23. (35.) The Master Plan (30 May 1965) Votes have not yet started for this episode
Titan in incensed when he realises that his continual defeats at the hands of Stingray, coupled with the loss of his prized slave Marina, is weakening his hold on the conquered underwater races. He concocts a plan to restore his position once and for all.
24. (20.) Star of the East (14 February 1965) Votes have not yet started for this episode
When the leader of an Eastern country is deposed in absentia whilst he is at Marineville, he blames them for his misfortune and, in order to get his revenge, kidnaps Marina.
25. (8.) An Echo of Danger (22 November 1964) Votes have not yet started for this episode
When the pursuit of a false sounding leads to the destruction of thousands of gallons of crude oil, Phone's fitness for duty is called into question.
26. (21.) Invisible Enemy (21 February 1965) Votes have not yet started for this episode
The Stingray crew find a catatonic man floating alone in a fishing boat and return him to Marineville for treatment. Before long, Marineville staff are also victims of his strange sickness and only Marina seems unaffected.
27. (19.) Deep Heat (7 February 1965) Votes have not yet started for this episode
An unmanned underwater probe disappears into the crater of a submarine volcano. Stingray is sent to investigate, but they too are dragged deep below the seabed.
28. (11.) In Search of the Tajmanon (13 December 1964) Votes have not yet started for this episode
29. (10.) Titan Goes Pop (6 December 1964) Votes have not yet started for this episode
30. (6.) Set Sail for Adventure (8 November 1964) Votes have not yet started for this episode
31. (13.) Tune of Danger (27 December 1964) Votes have not yet started for this episode
32. (15.) Rescue from the Skies (10 January 1965) Votes have not yet started for this episode
33. (18.) The Cool Cave Man (31 January 1965) Votes have not yet started for this episode
34. (30.) A Nut for Marineville (25 April 1965) Votes have not yet started for this episode
35. (31.) Trapped in the Depths (2 May 1965) Votes have not yet started for this episode
36. (22.) Eastern Eclipse (7 March 1965) Votes have not yet started for this episode
37. (12.) A Christmas to Remember (20 December 1964) Votes have not yet started for this episode
38. (16.) The Lighthouse Dwellers (17 January 1965) Votes have not yet started for this episode
39. (39.) Aquanaut of the Year (27 June 1965) Votes have not yet started for this episode