The film features 17 year old Dinah Sheridan as the daughter of the owner of a cheese factory (veteran actor Goerge Carney), who helps save her father from the action of a couple of swindlers.
Garage owner Harry Stone buys a racehorse, Brownie, from Peggy Lanstone and, according to formula, hires Peggy as the steed's trainer. When the filly finishes a mere second in the Oaks, Harry's snooty fiancee, Muriel, who never liked the setup anyway, disgustedly heads for greener pastures. Harry promptly marries Peggy, and, after an official investigation of the Oaks' results, Brownie gets revenge on the fickle Muriel.
Two truck drivers fired by the crooked trucking firm they worked for start their own company. Their former boss, worried about the competition, tries everything he can to drive them out of business, from sending his pretty daughter to seduce them to having his henchmen sabotage their trucks.
