Nathan Callister and Callie 'Calamity' Brookes are about as opposite as two people can get. Nathan believes Callie has earned her unfortunate nickname, particularly as she seems to cause mayhem wherever she goes. Callie is convinced Nathan is the same as every other man she's ever met - an arrogant, opinionated a**hole. When Callie is faced with an emergency, she has no choice but to call on Nathan for help. Suddenly, their preconceived ideas about each other are challenged, and they realize they have a lot more in common that than ever thought possible. But just as these enemies-turned-lovers are about to find their happily-ever-after, Callie's traumatic pasts rears its ugly head, threatening any chance that may have had of a future together.