The lines are blurred between duty and desire in ROCKY MOUNTAIN RESCUE by Cindi Myers 

Federal marshal Patrick Thompson almost lost one woman in his care. He won't lose another. As an officer for the Witness Security Program, it's his job to protect Stacy Giardino, the former daughter-in-law of an infamous crime boss. At first, Stacy is reluctant to trust the brawny cop—or to act on their intense mutual attraction. But when her toddler son is kidnapped, Patrick is the only person who can help her find him. As they work their way through the Rocky Mountains, trailed by killers, Patrick and Stacy grow closer, and the heat simmering between them ignites. But in an explosive showdown, Patrick will have only one chance to save the woman he can no longer live without.