There is a garage in downtown New York City on the ground floor of an eight-story building, with a winding ramp, that serves as a cache for stolen automobiles. The second floor is the repair shop, with the third, fourth and fifth as storage rooms and the sixth is the paint shop, where the hot cars are quickly changed via new paint, fenders and windshields and license plates. The seventh has a speakeasy, and the eighth is the penthouse where the supposed-gang leader,Jenkins, resides in comfort, while the real head of the gang rambles about posing as a deaf-mute known as 'The Dummy." All of this goes undetected by NYC's Finest, and might have continued to do so if the ground-floor-garage manager and "front-man", "Beef" Evans , hadn't been sent on a one-way ride down the ramp, and his widow, Nancy, asked her brother, "Gabby" Denton, to investigate. Or, if Jenkins' sweetie, "Silver," hadn't gotten the sweets for "Gabby."

The ramshackle Smoky River Ranch is all that stands in the way of a developer and a big real-estate deal, but the old man who owns the ranch won't sell it, because he has to take care of some down-and-out theater people to honor his dead son's memory. Frustrated, the developer sends in a pretty young girl to try to trick the old man into selling the ranch.

With the backing of the Mayor, Brady is running a crooked gambling operation. When Sheriff Curt shuts him down, he reopens when the Mayor charters his place as a private club. When Curt decides to run for Mayor, he is made to shut down the popular Warren medicine show. With Curt now out of favor the Warrens decide to run their daughter for Mayor and Brady has a plan to stop her also.

A high-speed train becomes the star of the film as it rushes from Chicago to Hoover Dam to transport an iron lung to a needy patient.