A Plague of Iron — Chuck Freadhoff

When his son, Scott, is murdered in Tijuana, Wade Mauer vows to avenge his death. But Wade's world is turned upside down a second time when he discovers that Scott was in love with a woman in Tijuana and that they had a son. Helped by his friend, Horn, a retired DEA agent, Wade undertakes a mission to find his grandson and the boy's mother. The hunt takes Wade and Horn into a world of outlaw bikers, Russian mobsters and ultimately south of the border into the heart of the Mexican drug wars. As they prepare an audacious plan to rescue the boy and save his mother, Wade is forced to face his own dark secret. A Plague of Iron is a gripping thriller but also a story of family, and love and, ultimately, redemption.