Flagwaving story of a new American destroyer, the JOHN PAUL JONES, from the day her keel is laid, to what was very nearly her last voyage. Among the crew, is Steve Boleslavski, a shipyard welder that helped build her, who reenlists, with his old rank of Chief bosuns mate. After failing her sea trials, she is assigned to the mail run, until caught up in a disparate battle with a Japanese sub. After getting torpedoed, and on the verge of sinking, the Captain, and crew hatch a plan to try and save the ship, and destroy the sub.

Two daredevil pilots go after the same girl.

A nurse's younger brother is caught in a shootout between a criminal gang and the police, and he is shot and killed. The officer who is accused of shooting the man knows that he didn't do it, and sets out to find the real killer and clear his own name.

Daniel Francis O'Toole, singing maestro in a New York restaurant, finds himself the unexpected heir to an estate in Ireland. He doesn't have money enough for the passage to Ireland, but the band members decide to incorporate him, advancing him the fare for equal shares in the estate. In Ireland, Danny finds that his is only a half-share, and the other half belongs to Mavourneen Kerrigan and she has the exclusive right to sell or keep the property...which, despite his pleas, she refuses to do. She also declares him an undesired guest, objects to his presence and insists that he prepare his own meals. He does so in a large main hall, but can only make hamburgers.