Returning from a traumatic tour of duty in Syria, Delta Force warriors Kelly Murdoch and Carl Wilson get the assignment of their lives — infiltrating a surfing cult of Mexican drug runners.

But these are not the usual narcos; hardscrabble criminals such as Pablo Escobar and El Chapo who fought and murdered their way to the top. This is the new generation known as el hijos – the sons. Instead of emerging from ghetto barrios or peon hill farms like their families, they are billionaire playboys born into a life of inconceivable luxury. They live for drugs, women and in the case of the Cartel de Tijuana, surfing. Along the California border, the hijos spread more terror than their fathers.

With Alaskan adventurer Chris Stone, Kelly and Carl penetrate the world of the new narco ‘royalty’. A world of unimaginable opulence and random cruelty, where a gangster ‘brat pack’ has an iron grip on America’s increasingly violent and volatile border.

The most powerful hijo is Miguel Guerra, whose father is the jefe of the Cartel de Tijuana. To take him on, Carl and Kelly have to break into Miguel and his beautiful sister Teresa’s inner circle. To do so, they not only have to fight in a drug war, they have to go up against the most lethal group of gangsters in the Americas.

This is the fourth thriller in the Chris Stone series. As with the others, Spence blends fact and fiction in a blistering action-adventure saga that is frighteningly real and in tune with the times.