Submarine Super 99
Dr. Oki, the brilliant scientist behind a revolutionary submarine design, has vanished. His son, Susumu, suspects foul play by a shadowy group. Knowing every detail of his father’s submarine, the "Super 99" - its equipment, weapons, capabilities, and functions - Susumu believes finding his father will expose the secretive "Helmet Party" and thwart their sinister plans. With support from friends and the Marine Corps, he embarks on an underwater mission, unaware of the true danger that awaits him.
