Purchasing the Carney Carnival and Road Show, unscrupulous sportsman Martin Trask assumes he has ownership of Rex, the world's greatest trained horse, and its rider, Margie Smith. The girl releases Rex, flees from Trask in a runaway wagon, and finds shelter with young cowboy farmer Jack Merritt, with whom she falls in love.

• Universal Pictures
• Rex
• Jack Perrin
• Helen Foster
• Tom London
• Starlight the Horse
• Jim Corey