
Plot
In this western, the Three Mesquiteers must find a killer and his band after they murder an official from the State Agricultural Service who had come to investigate an outbreak of hoof and mouth disease. The killer is fearful that the official would quarantine his entire herd. Unfortunately for the foolish rancher, if the herd is not isolated, all of his cows and those of his neighbors will die anyway. The heroes are assisted by Buck the clever Great Dane.
Trailer
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Cast

Ray Corrigan
Tucson Smith

Max Terhune
Lullaby Joslin

Ralph Byrd
Larry Smith

Sandra Corday
Ann Evans

Robert Warwick
John Evans

Cornelius Keefe
Tom Brent

Sammy McKim
Mickey Evans

Hal Taliaferro
Henchman Luke

Willie Fung
Ranch Cook

Buck
Buck