Jenny is a lonely and unhappy young mother who recently left the world she knew in San Diego for Phoenix Arizona in the summer of 1980. She is having a terrible day, which is made worse when her car overheats on the way back from work. Things begin to look up when Kate, a cute and good-hearted high school rocker chick, offers her a ride home. Jenny’s radiator isn’t the only thing that overheats as the two young women are drawn together by circumstance in the scorching desert heat.