Annie Portion is real “Redtail Annie” a mysterious and notorious female outlaw. No one has ever seen her face because it's always covered with a large handkerchief. Annie saw the sheriff's application on the Mail Order Bride service, and she saw it as a great opportunity. She figured her gang could strike with a lot more impunity if she were actually married to the sheriff. It's a bold, long-term plan that could work. It's a great idea that would have been perfect except for one thing; Annie is falling in love with Tex.
With their time together, Annie begins to develop feelings for Tex. She starts to develop a real liking for her life with him in Brimstone. But her gang doesn't know this, and they're getting itchy, waiting for her signal to rob the town bank, at the most opportune moment. With the stakes so high, what choice will Annie make? Who will prevail? Annie Portion, the woman who loves Tex Wilson, or “Redtail Annie” the outlaw?