Frank Carlson Library

While on a routine medical inspection tour of a railroad line camp in the Mojave desert, Doctor Frank Conroy becomes entangled in the kidnapping of a wealthy young woman. While both their lives in the balance, Conroy must not only find a way to escape, but also lead the way across hostile desert known as the Devil's Playground.

Trail boss, Clay Burnet, is having a rough time leading a cattle drive through the desert into Indian country. When they are attacked by Indians, it looks like the end of the trail for the Patchsaddle crew.