A cattle-vs.-sheepman feud loses Connie Dickason her fiance, but gains her his ranch, which she determines to run alone in opposition to Frank Ivey, "boss" of the valley, whom her father Ben wanted her to marry. She hires recovering alcoholic Dave Nash as foreman and a crew of Ivey's enemies. Ivey fights back with violence and destruction, but Dave is determined to counter him legally... a feeling not shared by his associates. Connie's boast that, as a woman, she doesn't need guns proves justified, but plenty of gunplay results.
A former Union Army officer plans to sell out to Anchor Ranch and move east with his fiancée, but the low price offered by Anchor's crippled owner and the outfit's bullying tactics make him reconsider. When one of his hands is murdered he decides to stay and fight, utilizing his war experience. Not all is well at Anchor with the owner's wife carrying on with his brother who also has a Mexican woman in town.
When Rocklin arrives in a western town he finds that the rancher who hired him as a foreman has been murdered. He is out to solve the murder and thwart the scheming to take the ranch from its rightful owner.