The novel starts off with Rick "The Hellion" Benton and El Cerebro in Arizona State Prison. As they hear of their long waiting executions for crimes that got them more than a life sentence, they decide to escape. When they escape they flee to Mexico with help of the Main 6's Motorcycle Coalition that stretches far beyond the American border. A friend of Emilia's disappears from the party the night before while the two made a pit stop in Tijuana, and rumors of a serial killer grow. The Capo who leads Palido Sombrio militia through Latin America is the suspected serial killer the Main 6's speculate. It doesn't take long for The Capo to kill again. Leaving a trail of bodies from Mexico to Colombia, Ecuador, and Peru, The Capo leaves the pale rider's scripture.