Mizuzaki jumps into the water and saves Hajime and Tokihara, then takes control of the ship. They come across an island, and row ashore to seek help. Reporter Yoshikazu Akai becomes separated from the others and thinks he sees the captain, but it is a ploy and he is pushed off the cliff to his death. After they return to the ship, Hajime reviews all the evidence and asserts that the killer is Chief Engineer Kentaro Otsuki...