It's about Numa which is the national underwater Marine association and it's about a jellyfish called the blue Medusa and it has actual medical purposes but it's disappearing off the face of the earth
In the Micronesian islands a top-secret US government sponsored undersea lab conducting vital biomedical research on the rear jellyfish known as the blue Medusa suddenly disappears at the same time and offer you a bath sphere is attacked by underwater vehicle and left helpless