In late 1944, America's naval forces face what seems an insurmountable threat from Japan: immense Yamato-class battleships, which dwarf every other ship at sea. Built in secrecy, these ships seem invincible, and lay waste to any challengers. American military intelligence knows of two such ships, but there is rumored to be a third, a newly-built aircraft carrier, ready to launch from Japan's heavily-defended and mined Inland Sea. Such a ship would...

Deep Sea Diver, Robot, and Monkey board a submarine, the Guppy, to delve into the darkest depths to discover what has taken the light from the sea.

"The cataclysm that began with coordinated reactionary coups in South Africa and Germany caught America completely unprepared. Overnight, new enemies have emerged and joined forces to attack U.S. and European shipping lanes, setting off a global conflagration raging in deadly earnest. And this time the devastating weapons of choice used by the Berlin-Boer Axis will be tactical nuclear weapons." "The enemy boat Voortrekker prowls beneath the ocean's...

A trouble-shooting 19th century seaman is trying to discover why so many whaling ships have been disappearing of late. Teaming with a scientist and a diver, they set sail to investigate. They are promptly captured by the megalomaniac Captain Nemo, who skippers a lavish, scientifically advanced submarine.