Gabby doesn't want to breed his horse the Golden Sovereign with Roy's. When Sovereign and Roy's horse escape, the Sovereign gets shot accidentally by Skoville but Roy is blamed and jailed. A year later Roy returns with Trigger, the son of the Sovereign. When Skoville reveals he was present when the horse was shot, Roy sees an opportunity to clear his name.
Roy Rogers
as Roy Rogers
Trigger
as Trigger, Smartest Horse in the Movies
George 'Gabby' Hayes
as Gabby Kendrick
Dale Evans
as Susan Kendrick
Jack Holt
as Brett Scoville
LeRoy Mason
as Henchman Carson
Roy Barcroft
as Henchman Hunter
Sam Flint
as Sheriff
Kenne Duncan
as Croupier
Ralph Sanford
as Auctioneer Al
Francis McDonald
as Storekeeper
Harlan Briggs
as Dr. Bentley