Law of the Pampas 1939

Synopsis:

Hoppy and Lucky are headed to South America to deliver a heard of cattle. Bay guy Ralph Merritt gets in their way. For a while.

Directed by: Nate Watt
Written by: Harrison Jacobs
Runtime: 72 minutes
Tagline: HOPPY HITS THE ARGENTINE
Related titles:
Cast:
William Boyd
William Boyd
Hopalong Cassidy 
Russell Hayden
Russell Hayden
Lucky Jenkins 
Sidney Toler
Sidney Toler
Fernando "El Melancolio" Lopez Ramirez 
Steffi Duna
Steffi Duna
Chiquita 
Sidney Blackmer
Sidney Blackmer
Ralph Merritt 
Pedro de Cordoba
Pedro de Cordoba
Valdez