I vaguely remember Gale Storm from "My Little Margie," or maybe it was "Oh Susanna," though possibly one or both of these were in syndication by the time I saw it.
Here she plays Mitzi Mayo, a Hollywood starlet whose father had plans for a searchlight filter which would be helpful to the Allies. She and her friend Jimmy (John Shelton) attempt to keep both the Japanese and the Germans from getting the blueprints after her father is killed.
There is no point going into how dumb this film is, with its bad print, the Germans and Japanese joining forces, and a Hollywood starlet foiling their evil plot.
Gale Storm sings a couple of songs. She made a ton of movies of this ilk before turning to television, with two successful series. "My Little Margie" had silent movie star Charles Farrell in it. Both Farrell and Storm lived nice long lives - maybe it was something in the water.
Ordinary B, probably made in two days for less than $100.