A genial mountain man, Joe Crane, finds himself in a mountain of trouble after a barroom brawl with an arrogant aristocrat Don Carlos Fernandez. Infuriated at being bested, Don Carlos vows to kill the hapless victor. When bystander Don Diego cannot prevent the scheming Don Carlos from carrying out his deadly plans, it looks as if only the skill and strength of Zorro can save Joe from the murderous clutches of the vengeful aristocrat and his henchmen!