It's not easy being the only girl in the Durant household. It's tough when everybody views you as the baby of the family, despite having a twin brother who is only two minutes older than you. But most difficult of all is harboring a secret crush on your twin's best friend for three years. Sofia Durant is having the worst last weeks of high school she could have ever imagined, especially after failing two classes and having to take summer classes in order to graduate. So when Adrian Carter, the star of the college soccer team in Madrid unexpectedly asks her out on a date, she thinks her bad streak has come to an end. But things take a turn for the worse and after an unspeakable night she wishes she could forget, flees to London to live with her older brother Leo. Eight months pass before she finally has the courage to come back home and resume her life, only to find that things are a whole lot different now and she's not the only one who has changed.

Nico Durant is living a lonely life as the remaining member of his household. Not only did his twin sister and best friend move away, but he's also recovering from the wounds his ex-girlfriend caused. Olivia Paz is the mysterious new girl on campus everyone is talking about. But she only has two goals in her life: working through college, and taking care of her dad. When Olivia finds herself in trouble, Nico can't avoid helping her, even if it means jeopardizing his new status as captain of the soccer team. Nico's past unexpectedly catches up with him, and he must decide whether he's capable of letting Olivia go, or loving her.

The Institute's next generation of shadow hunters have arrived. Everything seems to be going good but then they are all separated. Terrible tragedies take place leaving the kids tougher than before and marking the start of new missions. But before we get to that, you'll just have to read to find out how it goes.