When his ship is torpedoed by a Japanese submarine, Harry Patterson (Clark Gable), a World War II merchant marine boatswain, is cast adrift on a launch with a few of his shipmates. While Harry remains calm in the face of disaster, his friend Mudgin (Thomas Mitchell (actor)) prays desperately, promising to avoid women, liquor, and fighting and to donate money to the church if they are saved. Harry finds Mudgin's pleas ridiculous, but no sooner does Mudgin complete his pact with God than a rescue plane appears on the horizon and the men are saved.