Super Atragon : The Movie

Moments after an atomic bomb falls over Hiroshima, a secret Japanese submarine sails into battle against it's American counterpart, and both are lost to history. Some fifty years later, a special UN task force sent to investigate unusual phenomena in Antarctic is threatened by a mysterious black cylinder until the re-appearance of the long lost Japanese submarine. However, the incident in the Antarctic is only the first round in a cataclysmic battle of wills between two decendants of an ancient race dwelling within the Earth. Standing against them is a single, amazing ship, the RA, a Yamato-class battle submarine secretly rebuilt after its supposed destruction in World War II.