Horse trainer Steve Tapley is caught between the feuding Martingale and Shattuck families. He sides with young Nancy Martingale and her grandfather Ezra, and the feud is to be resolved by a horse race between the favorites of each family. Unfortunately, the Martingale's horse, Greyboy, only runs well in mud. And it hasn't rained in a long time.
Will Rogers
as Steve Tapley
Dorothy Wilson
as Nancy Martingale
Russell Hardie
as Dr. Lee Andrews
Charles Sellon
as Ezra Martingale
Louise Henry
as Arlene Shattuck
Esther Dale
as Dolly Breckenridge
Alan Dinehart
as Slick Doherty
Charles Richman
as Pole Shattuck
Etienne Girardot
as Pluvius J. Aspinwall, the Rainmaker
John Ince
as Sheriff
Bill Robinson
as Wash Jackson
Bill Robinson
as Greyboy
