**SPOLIERS** After some half dozen US Navy subs have been destroyed in the Arctic Ocean within 200-from 87 to 90 degrees North latitude-miles of the North Pole it's decided by the US Military to send it's most advanced atomic submarine The "Tiger Shark" there to see what's causing all this destruction.

With Camdr. Reef Holloway, Arthur Franz, and his second in command Capt. Dan Wendover, Dick Foran, put in charge of the nuclear sub "Tiger Shark" in a top secret mission to the North Pole things get a bit sticky when Dr.Carl Neilson joins the sub's crew. Despite his youth, he's in his late 20's, Dr. Neilson is one of the top oceanographers in the world.

Dr. Neilson is also an unashamed peace-nick who had his old man, Reef's mentor the top naval war tactician in Annapolis,and the person whom Reef worshiped the very ground he walks on,end up hospitalized with a career ending nervous breakdown! That resulted in Dr. Neilson insinuating to the press that his father is a warmonger in his obsession with the use of nuclear submarines- and their payload of Polaris nuclear missiles-in the defense of freedom.

This tension between Reef and Dr. Neilson goes on unabatedly during the entire trip to the North Pole until it's realized that what's been sinking US military vessels up there is a hostile 300 foot in diameter flying saucer!

This UFO identified as the Cyclops, because of its flashing blue light, is using the magnetic pull of the earth, centered at the poles, to regenerate itself with magnetic energy. At the same time the UFO in order to keep it's existence secret zaps any ship or underwater sub that's unfortunate enough to get in its way!

It's also later found out straight from the UFO's pilot's-a hairy one eyed alien- mouth, or subconscious, that it's planing to have it's fellow one eyed monsters colonize the world and enslave the earth's human population!

It takes a while, with a number of the "Tiger Sharks" crew members getting killed, to figure out how to handle this alien, or aliens, from space. But later with the help of the now, he finally saw the light, kill em first and don't ask questions later ex-pacifist Dr. Neilson the human race in the end prevailed.

The problem now, after destroying the Cyclops, is just how many more of these one eyed monsters are still out there in space watching and monitoring us! And also will we have the both strength and fortitude, as well as the military hardware, to combat and defeat them in the not so far off distance future?