In a warehouse area at night, a drunk chief engineer is stabbed to death by someone who whistles. After the break of dawn, two seamen join the crew of a rusty cargo ship Kaiyo Maru. One is a troublemaker with bad attitudes, Senkichi Nomura, who pursues an enemy in order to take revenge for his father's death. The other is Keizo Sasaki, a buff, eagle-eyed man on board for a certain mission.

• Nikkatsu Corporation
• Yūjirō Ishihara
• Rentaro Mikuni
• Ruriko Asaoka
• Hiroyuki Nagato
• Hiroshi Nihon'yanagi
• Shinichi Yanagisawa
• Kinshiro Matsumoto
• Jushiro Kobayashi