An MSDF submarine collides with a U.S. nuclear submarine, crushing all 76 people on board, including its CO, Shiro Kaieda. However, the crew survives. The accident is a cover story to get the MSDF submarine's crew on board the Seabat, a nuclear submarine secretly built by the Japanese and U.S. governments. However, Kaieda loads the Seabat with nuclear missiles and suddenly mutinies and flees.
Yamanami crushes
Seabat surfaces
Kaieda vs fukamachi
Combat begins
Japan-u.s. summit meeting
Seabat enters tokyo bay
Yamato vs. japan, alliance negotiations
Tatsunami sinks
NextFilm 2025