Jennie Townsend is unlucky in love, and the cute, kind-hearted 17-year-old has all but sworn off boys in her last year of high school. That’s before a mysterious teen named Nate enters her life. Before she knows what’s happening, Jennie finds her feelings for this handsome but inscrutable boy growing stronger than either of them intended. But who is Nate? In fact, Jennie could not even begin to imagine the truth: Nate is a Guardian Angel, a Protector, sent to stand sentinel over her during a most dangerous time in her life. His job is nothing less than saving her life, and to do so he must first become close to her – but not too close. The rules for Protectors warn against physical contact and strictly forbid falling in love. But the more time Nate spends with Jennie, the harder the rules become to follow. Will Nate be able to save Jennie from a premature end, or will his own emotions – and Jennie’s – get in the way of completing the task for which he was specially chosen?