Stallion Road

Stallion Road is a 1947 American neo-Western drama film directed by James V. Kern, written by Stephen Longstreet, and starring Ronald Reagan, Alexis Smith, Zachary Scott, Peggy Knudsen, Patti Brady and Harry Davenport.

[2][3] Based on the novel and screenplay by Stephen Longstreet, this film depicts the romance which flowers between a breezy young veterinarian (Ronald Reagan), and a lady who runs a breeding farm (Alexis Smith).

But then, in a moment of crisis, when the favorite mare of the lady is at death's door, the vet doesn't respond to her summons.

And that, it seems, is an incident which the lady takes very personally: she gives the vet the cold shoulder and throws herself into the arms of his pal.

Eventually, things come around when the vet contracts anthrax himself (after pulling the lady's herd of horses out of danger with a new serum he has found) and she realizes that she still loves him and that she has to save him at all costs.