Horse breeders Adams and Brock are vying for the Army contract. When Adams is killed trying to ride his horse Trigger, Roy saves the horse from being shot. He trains him and then plans to ride him in the race to win the contract.
Roy Rogers
Trigger
Ruth Terry
Guinn "Big Boy" Williams
Onslow Stevens
Mary Treen
Joseph Crehan
Duncan Renaldo
LeRoy Mason
Janet Martin
Harry Wiere
Herbert Wiere
Sylvester Wiere
Bob Nolan
Eadie Del Rubio
Milly Del Rubio
Elena Del Rubio
Pat Brady