Barbara Stanwyck stars as Jessica Drummond, a rancher who runs her Arizona cattle ranch with an iron hand and a private army of 40 hired guns. The tough-as-nails matriarch has a troublesome brother whom she nonetheless dotes on, and when he shoots the sheriff she comes to his aid, unable to say no. This instigates an all-out war, which is further complicated by the fact that the new Marshall, Griff Bonnell (Barry Sullivan) falls hard for Jessica, and she returns his feelings.