Silent Service

Codename: Seabat. The most dangerous submarine ever created. Explosively nuclear and manned by a crew that is officially dead, the Seabat is the most closely guarded military secret in the world. And it has just gone rogue.

Cast: Masane Tsukayama, Akio Otsuka, Osamu Kato, Kan Tokumaru, Osamu Saka, Yuzuru Fujimoto