Shin Kaitei Gunkan
New Undersea Battleship ／ Super Atragon ／ The New Submarine Battleship ／ 新海底军舰 ／ 新海底軍艦
Description
Moments after an atomic bomb falls over Hiroshima, a secret Japanese submarine sails into battle against its American counterpart, and both are lost to history. Some fifty years later, a special UN task force sent to investigate unusual phenomena in Antarctica is threatened by a mysterious black cylinder. (Source: Anime News Network)