Honore Greenwood has an unfortunate knack for embroiling himself in the most violent conflicts of the Southern Plains. Known as Plenty Man to the Comanches, Honore serves as ransom negotiator for captives among the Indians. As is that wasn't enough, Honore has offered his services to the New Mexico Volunteers in the Civil War. But as Honore's luck would have it, his unit includes Luther Sheffield, a man whose grudge against Greenwood knows no bounds, even though they are allies. Torn between a nation on the rise and his adoptive culture, Plenty Man is forced to leave the fight for Comanche freedom against his old friend, Kit Carson. But when it becomes difficult to tell enemy from ally, Plenty Man's loyalty to the Indians may cost him everything - his beautiful wife, his friendship with Kit and even his very life.