When FBI agent Maria Belasco is mysteriously attacked, her soon-to-be ex-husband, Austin O'Brien, is instantly on the scene. Problem is, she can't remember what happened or the case she was working on. Or how, months before, tragedy had driven her and the reserved rancher irrevocably apart....

Now Austin must pretend that nothing has changed between them to help Maria get her memory back and discover who wants her dead. But protecting her 24/7 is reigniting desires even more explosive than before. Austin will do whatever it takes to expose the enemy on their trail. But putting his heart on the line a second time could prove to be the most lethal risk of all....