More than a decade after the Civil War, a nation tries to rebuild as an outlaw faction takes root across the West. In the unincorporated parts of the country, this plague grows with no one to regulate. Gunslinging detective Matthias Breecher is hired to track down the worst of the Confederate war criminals, with nothing more than his wits and his revolver. As he roams the Old West seeking justice, his resolve is tested when he meets a determined pioneer woman who is far more than she seems. As the lawless converge on this lawman, death is inevitable in a terrain that welcomes no stranger.