Cast & Crew
At the Radar Secret Service office in Washington, D.C., radar operator Bill Travis, using the newest radar technology, locates the gun used in the Allen murder case. Meanwhile, at a café, gangster Micky Moran's girl friend Lila keeps track of a shipment of uranium ore that the gang plans to hijack. Radar operators, using a surveillance device called the "Tele-Meter," which is mounted onto the roof of their truck, follow the uranium load as it makes its way to the atomic plant. En route, two of Moran's men hijack the truck and kill the drivers. When the radar operators see the truck take an unexpected turn off the main road, they send agents to follow it. Blacky, a gangster hoping to quit crime and marry waitress Marge, is captured by the radar men, but the other driver escapes with the uranium. Fearing more trouble from the radar truck, Michael, the gang's contact man, orders Moran to destroy the truck, then deliver the uranium to his yacht on the river. Radar agents later link Marge to the gangster operation when they find a picture of her with an inscription from Blacky. At the café, the agents trace the telephone number Marge dials to call Blacky to Moran's. Back at the Radar Department, Bill finds the car containing the missing uranium on his "Tele-Meter" and reports the location of the truck to the radar agents assigned to follow it. The agents follow the truck to a remote location, where they seize part of the uranium but fail to capture the hijackers. Bill is later knocked unconscious by Moran while trying to question one of his men. He is found by Marge, whom he recognizes as Blacky's girl friend, and enlists her help in finding Moran. Hoping to elude the agents, Michael tells Moran to send one of his men out with a decoy shipment of uranium while the bulk of the uranium is trucked to the dock. As the decoy car, which has been tampered with by Moran, crashes, Moran drives the rest of the uranium to the yacht. The Radar Department's helicopter spots the car en route to the dock, and a shootout ensues between the Secret Service agents and the hijackers. Moran is injured in the gunfight, but manages to escape to Lila's, where he points his gun at Michael and Lila. Michael shoots Moran, but Marge arrives before they can flee, and threatens to shoot Moran unless Blacky is released. Moran then shoots Marge, but Bill arrives in time to arrest Moran and Lila. With the radar's usefulness proven, Hamilton, the head of operations at the radar center, tells Bill that the budget for future development of the device will be increased.
Robert L. Lippert
Barney A. Sarecky
The working title of this film was Radar Patrol. The film opens with an offscreen narration explaining the many uses of radar. Republic Studios also produced a serial entitled Radar Patrol vs. Spy Kings, but the serial is unrelated to this film.