Helen Stover, the speed-loving daughter of an automobile manufacturer, decides to challenge rival manufacturer Stanley Merritt in a race. Although Mr. Stover is in deep financial trouble, he refuses to allow Helen to enter one of his new cars against Merritt. Determined to have her own way, Helen and mechanic Billy Brooks repair her old car so that Billy can drive in the race. When Merritt's men attack Billy and prevent him from driving, Helen takes his place and wins the race.