1 - 1Menace of the Black Manta Sep. 09, 1967
1 - 2The Rampaging Reptile Men Sep. 09, 1967
1 - 3The Return of Nepto Sep. 16, 1967
1 - 4The Fiery Invaders Sep. 16, 1967
1 - 5The Sea Raiders Sep. 23, 1967
1 - 6War of the Water Worlds Sep. 23, 1967
1 - 7The Volcanic Monster Sep. 30, 1967
1 - 8The Crimson Monster From The Pink Pool Sep. 30, 1967
1 - 9The Ice Dragon Oct. 07, 1967
1 - 10The Deadly Drillers Oct. 07, 1967
1 - 11Vassa, Queen Of The Mermen Oct. 14, 1967
1 - 12The Microscopic Monsters Oct. 14, 1967
1 - 13The Onslaught Of The Octomen Oct. 21, 1967
1 - 14Treacherous Is The Torpedoman Oct. 21, 1967
1 - 15The Satanic Saturnians Oct. 28, 1967
1 - 16The Brain, The Brave, and The Bold Oct. 28, 1967
1 - 17Where Lurks the Fisherman Nov. 04, 1967
1 - 18Mephisto's Marine Marauders Nov. 04, 1967
1 - 19The Trio Of Terror Nov. 11, 1967
1 - 20The Torp, The Magneto, and The Claw Nov. 11, 1967
1 - 21Goliaths Of The Deep Sea Gorge Nov. 18, 1967
1 - 22The Sinister Sea Scamp Nov. 18, 1967
1 - 23The Devil Fish Nov. 25, 1967
1 - 24The Sea Scavengers Nov. 25, 1967
1 - 25In Captain ‘Cuda's Clutches Dec. 02, 1967
1 - 26The Mirror Man From Planet Imago Dec. 02, 1967
1 - 27The Sea Sorcerer Dec. 09, 1967
1 - 28The Sea Snares Of Captain Sly Dec. 09, 1967
1 - 29The Undersea Trojan Horse Dec. 16, 1967
1 - 30The Vicious Villainy Of Vassa Dec. 16, 1967
1 - 31Programmed For Destruction Dec. 23, 1967
1 - 32The War Of The Quatix And The Bimphabs Dec. 23, 1967
1 - 33The Stickmen Of Stygia Dec. 30, 1967
1 - 34Three Wishes To Trouble Dec. 30, 1967
1 - 35The Silver Sphere Jan. 06, 1968
1 - 36To Catch A Fisherman Jan. 06, 1968