It’s called the Triple Frontier—the volatile border zone between Paraguay, Brazil, and Argentina, one of the most lawless and deadly regions in the world. For drug lords, slave traders, and fanatics, it’s a corrupt sanctuary. For special agent Jericho Quinn, it’s the crossroads of hell. Especially when his younger brother Bo gets caught in the fire. Enlisted to protect the son of an IT mogul on a motorcycle trip through South America, Bo and his crew disappear after being kidnapped by a ruthless cartel. Now Jericho has amassed a cartel of his own to face down the most vicious criminals on earth—far from home, without U.S. government sanction, and without mercy.