It's really just a bit of wartime propaganda this - extolling the sterling efforts of the US Navy destroyer. From the build, through it's launch and maritime trials, this film follows "Boley" (Edward G. Robinson) who served on the last "USS John Paul Jones" and is determined to serve on this one. That determination causes upset with the younger "Donohue" (Glenn Ford) who is bumped of that gig - and the two men just don't get along. "Donohue" takes up with the older man's daughter "Mary" (Marguerite Chapman) and that just adds to their tensions. At sea - where this film spends nowhere near…