Atragon

“The dreaded undersea kingdom challenges the surface! The emergency dispatch of the all-purpose atomic battleship!”

Tasumo Hatanaka (Tadao Takashima) wants to find the man who built the greatest warship ever seen, a Captain who has vanished from the world since the war. The empire of the lost continent of Mu has risen again to threaten the surface, and that ship may be the only defense left. Ishirō Honda sets the hunt beside Yōko Fujiyama's Makoto Jinguji, and the Captain keeps his warship hidden away from everyone.