Shin Kaitei Gunkan

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: ANN)

• Episodes: 2
• Status: Finished Airing
• Score: ⭐ 6.41
• Type: OVA