Sandshark (Fictitious submarine) Rescuing a missionary and his wife from a Japanese-held island turns out to be more of a chore than the submariners figured. When the missionary balks at being taken off the island, one member of the rescue party takes matters into his own hands and settles the issue with a well-aimed left hook. Later, aboard the submarine, he tells the missionary that an enemy mortar blast had knocked him unconscious. Submarine and crew members are not identified but the incident happened exactly as depicted.