Carl Becker (Craig Stevens) is going to meet a government agent friend. However, a group of Nazi spies get to this friend first and murder him using poison gas hidden in a radio(???). The death is ruled a suicide...and Becker knows his friend was not depressed and loved life...so he fights to get someone to investigate the case further. Eventually, his path crosses that of the Secret Service. They not only believe him but he joins the service...and spends the rest of the film trying to capture these wicked Nazis.

This is a B-movie from Warner Brothers--hence it looks a lot better than the typical B. It's also more enjoyable. However, like most B- films. this one has some lulls in the quality of the writing--with a few scenes that didn't make any sense whatsoever (such as the escape from custody from the train). Still, it is, like the best of the Bs, enjoyable and packs a lot into only about an hour.