Retired Santa Fe police chief Kevin Kerney is horrified to learn that his horse-training partner, Riley Burke, has been murdered by an escaped prisoner, prompting Kerney to team up with his half-Apache son to hunt down the killer.

"Detective Clayton Istee investigates New Mexico borderland killings by an elusive Mexican assassin with ties to a drug cartel. In Michael McGarrity's final, propulsive Kevin Kerney novel, the nightmare of the Mexican drug wars spills across the border with the discovery of a couple in a Las Cruces hotel, scalped with their throats cut. Because of the unusual MO, Detective Clayton Istee suspects that the murders are drug related, but a lack of evidence...

When pro rodeo star Johnny Jordan returns to Santa Fe, he asks his childhood friend, police chief Kevin Kerney, to serve as a consultant on a new film being staged along the Mexican border. On the road to the location, Kerney discovers the dead body of an undercover federal agent.