Shin Kaitei Gunkan

Decades after a mysterious naval battle near the end of World War II, Go Arisaka joins an expedition investigating an unusual phenomenon in Antarctica. There he encounters the seemingly ageless Annette and discovers his father's connection to the warship Ra.

A threat from a civilization beneath the Earth draws old secrets into a new crisis. Caught between his family's past and the danger facing the surface, Go becomes involved in a conflict that calls Ra into action against devastating technology.