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Kermit Maynard once again dons a Mountie uniform in Ambassador Films' Red Blood of Courage. The plot gets underway when Mark Henry (Reginald Barlow), the owner of a valuable oil deposit, is kidnapped and replaced by an outlaw look-alike (also Barlow). The masquerade fools everyone, even his niece Beth (Ann Sheridan, in one of her first leading roles). But RCMP officer Jim Sullivan (Maynard), himself travelling incognito to track down the murderer of his best friend, isn't so easily taken in by the phony landowner. Things get hairy when the false Mark Henry is murdered by his henchmen and blame for the killing is placed on Sullivan. But the real Henry shows up in time to help our hero track down the heavies and rescue the heroine.