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