Law of the Wild 1934

Rex, a wild stallion, and Rinty, a police dog, are pals. Their master , John Sheldon, is framed for murder, and Alice Ingram plans to race Rex for money to pay for John's legal defense. Meantime, Frank Nolan, who has falsely accused John, sets out to steal Rex for himself.

Cast:

Rex
Rex King of the Wild Horses 

Rin-Tin-Tin Jr.
Rinty 

Bob Custer
John Sheldon 

Lucile Browne
Alice Ingram 

Ben Turpin
Henry 

Edmund Cobb
Henchman Jim Luger