Keely Walsh has three doctorates, five older brothers and has never met a situation she couldn't handle. While consulting with the NSA, she discovers sensitive government information indicating her brother, a private security operative, is in danger. Keely travels to the dangerous Triple Frontier in South America to warn him and his colleagues and finds the last thing she expects—a man who sends icy shivers down her spine even as he lights every one of her fires. Ren Maddox, co-owner of Security Specialists International, a security firm that works for large corporations and governments, is on an intelligence-gathering mission for the US government when a petite strawberry blonde armed with a Bren Ten and an attitude ten feet tall pops out of the Argentine jungle with a warning of imminent danger. The fact she is one hundred percent correct shocks him to his socks. The fact she is Tweeter Walsh's baby sister and can fight like the fiercest Marine is beside the point. No one who looks like Keely should ever be in danger. And once he gets her out of the current situation, he'll make it his life's work to protect the feisty, sexy, little woman from any and all danger. One alpha male. One determined and independent female. One hot, tumultuous relationship.