Law of the Pampas (1939)
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
Starring: William Boyd, Russell Hayden, Sidney Toler, Steffi Duna, Sidney Blackmer, Pedro de Cordoba
Links: IMDb, Movie posters, Movie stills
