A spaceship is discovered under three hundred years' worth of coral growth at the bottom of the ocean. 1000 feet below the ocean, navy divers discover an object half-a-mile long. A crack team of scientists are deployed to the site in Deepsea Habitats. What they find boggles the mind as they discover a perfect metal sphere. What is the secret behind the sphere? Will they survive the mysterious 'manifestations'? Who or what is creating these? They may never live to find out.