Arizona Ranger Sam Burrack has encountered many a relentless outlaw in his days as a lawman, but none quite like Fannin "Dad" Orwick. The devout leader of the Redemption Riders, Orwick robs and kills to support his ever-expanding family of young wives and children, all in the name of the Lord. After the Ranger learns that Orwick is moving his harem of wives to a compound deep in the Mexican badlands, he heads south - and meets an unlikely ally in a stalwart woman named Mattie.

Once married to Orwick, Mattie has her own dangerous plans for her bloody-minded ex. But neither Sam nor Mattie can know just how far Orwick is about to go for God and family...