Kat MacGregor has forty-eight hours to make good on the debt her ex-boyfriend owes a crime boss. Unfortunately, the measly tips she makes waitressing are barely enough for her to live on, much less cover the twenty-thousand needed to keep her breathing. With time running out, Kat 's forced to accept help from the only man who's ever made her feel fire rather than fear.When he learns a friend's sister is in trouble, former Boston MMA fighter Aiden "Irish" O'Brien heads to Louisiana to offer himself up as collateral to keep her safe. But to satisfy the debt, he has to do the one thing he swore hed never do again: fight. With more than just money on the line, will Irish have what it takes to not only reclaim the man he once was, but become the man he needs to be for the woman he can't live without?