"In ""Menace of the Black Manta,"" Aquaman and Aqualad are attacked by a sinister black submarine. The Justice League battles invaders in ""Between Two Armies."" Reptile-Men abduct Aqualad in ""The Rampaging Reptile-Men.""
Aquaman find four giants trapped in a sea cave in "The Return of Nepto." The League battles an evil armada in "Target Earth." A huge alien spaceship sets fire to the oceans in "The Fiery Invaders."
Aliens collecting specimens release a sea serpent in "The Sea Raiders." The evil Mastermind threatens to reveal the identities of the League members in "Bad Day on Black Mountain." The friends find a portal in "War of the Water Worlds."
An undersea volcano unleashes a lava monster in "The Volcanic Monster." Tiny aliens invade aboard a meteorite in "Invasion of yhe Beetle-Men." A huge red monster destroys everything in its path in "The Crimson Monster From the Pink Pool."
Aquaman's domain is threatened by a monster called "The Ice Dragon." A plan to establish a research station is delayed by "The Plant Master." A platoon of submarines operated by mutant Mole Men attack Atlantis in "The Deadly Drillers."
Mechanical whales under the command of ""Vassa - Queen of the Mermen"" attack Aquaman. Atom must free the professors from ""The House of Doom."" Black Manta strikes again, using mutant plankton, in ""The Microscopic Monsters.""