O'Brien plays a man whose fiancé was murdered by three bandits. After killing one, he finds that another one is in the cavalry, so joins the cavalry to find him. He doesn't know what the two men look like, but they soon realize he is onto them. Along the way, he proves his worth, and is made an officer. He falls in love with a woman whose father may be one of the men he is looking for. After some skirmishes he is captured, along the woman, her father (Dean Jagger), Forest Tucker, Paul Fix, and others, and they await their deaths at the hands of Native Americans. First class story of revenge, and an all star cast, including the afore mentioned.