Sara narrowly escaped the ruins of the Cortez drug empire to find sanctuary in Miami. But is she really safe? And what of special agent Doug Bradford? Can a relationship formed under fire survive the stress of Doug’s dangerous profession? When old enemies resurface, the trail of suspicion leads to the lawless Tri-Frontier region of South America where drug-dealing, smuggling, and terrorism hide behind the tourist trade of Iguazu Falls, the world’s greatest cascades. A routine drug raid catapults Sara and Doug into a raging firestorm that sweeps across international borders . . . and this time the flames of terror burn in their own homeland.