Thunderhoof is a 1948 American Western film directed by Phil Karlson and starring Preston Foster, Mary Stuart and William Bishop.

Texas rancher Scotty Mason goes into the Mexican desert-country in search of a wild horse, and takes his young wife, Margarita and his hired-hand, The Kid, whose life Scotty had saved a few years earlier.

The Kid falls in love with Magarita before they have crossed the Texas border, and spends more time plotting to get rid of Scotty than he does horse-hunting.

Before long the two are engaged in fisticuffs in a mountain pass, but Scotty spots the horse he is hunting (Thunderhoof) and the chase is on.

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