Tim Reardon (Pat O'Brien) and Vince Barrows (Brian Donlevy) are partners in petty crime who fall out with each other. To escape the wrath of Barrows, Reardon enlists in the U.S. Army and so does Barrows and his two bodyguards Joe Scavenger (Frank Jenks) and Mike Paradise (Frank Sully.) All are sent to Trinidad, where a Nazi-spy operation brings the two partners together to pool their talents , for their sense of patriotism far outweighs their sense of outrage against each other. Cafe entertainer Patricia Dare (Janet Blair) provides the female attraction and distraction.