The film was based on an original story by Alex Gottlieb. Pine-Thomas Productions bought it in May 1941 and assigned Richard Arlen to star.[4]
Filming started October 1941.[5] Arlen had made three films for Pine-Thomas, who then signed a new three-film contract with the actor; this was the first movie under that contract and the first to not deal with an aviation theme.[6]
Frances Farmer was supposed to play the female lead but she was then put in Son of Fury (1942). She was replaced by Jean Parker who had made a number of films for Pine-Thomas.[7]
The film was shot before America's entry into World War Two but released afterwards. In January 1942 the Los Angeles Times wrote it was "one of those modest Pine Thomas affairs which might have slipped by without a ripple a month ago but which today sound like prophecy."[8]
In particular the film attracted attention for a scene where an old ship was converted into a fighter with planes on top and torpedo boats below; the planes would scout for the enemy and then the boats would attack. Screenwriters Maxwell Shane and Richard Murphy made up this concept but then Chairman Carl Vinson of the House Naval Affairs Committee proposed a similar idea. Pine-Thomas sent a copy of the film to the committee and arranged for the film to be released earlier.[8]