1928, U.S.A: Betty Robinson is running to catch her train. That day, her life will be turned upside down, for in one of the train cars is the coach of her high school's sports club. Impressed by her speed, he spots her extraordinary potential right away. Just one problem: the club is for boys only. For Betty, then, a struggle begins: against society and against herself, a race to reach her dreams and become the first female Olympic champion in track and field.