p 　　In the Mohave Desert, Olga runs a gas station, lunch counter, and auto camp with her younger sister Myra In a 二四-hour period, Olga must deal with Myra 三九 s desire to go to a town dance with a cad, the appearance by happenstance of George, an old boyfriend whose conduct is never above suspicion, and the overnight presence of two women recently divorced in Reno, who, with a chauffeur, are carrying valuable jewels George gets wind of the jewels and plays with Olga 三九 s heartstrings to set up a robbery Myra arranges to sneak off with her beau It 三九 s hot, and the heat lightening is crackling on the horizon Is Olga 三九 s life of peace and hard work in the desert about to change for the worse p