 Jenny Grey a horse loving country girl leaves her widowed father to move to the city after her father s frustrations towards Jenny and her desires to ride horses, after her mother had died from a horse-riding accident. Jenny finds work at a country race track and becomes obsessed with a troublesome horse called "Blue Fire Lady". "Blue Fire Lady" shows promise in Jenny s hands, but around everyone else misbehaves and shows no discipline. When "Blue Fire Lady" is put up for auction it is up to Jenny to either buy her or prove her.