It's been more than a year since Simon and Blue turned their anonymous online flirtation into an IRL relationship, and just a few months since Abby and Leah's unforgettable night at senior prom. Now the Creekwood High crew are in their first years at different colleges, navigating friendship and romance the way their story began -- on email.

Larissa Bogdan was supposed to spend her summer babysitting and bookselling. Instead, she tagged along with her mom to the Outer Banks, working on her tan and making new friends. Now she's back and starting her senior year at Stratford High, only to face another unexpected turn: She's finally attracted the attention of superstar quarterback Chase Harding, the guy she's crushed on since middle school. Then Jasmine Killary shows up. Jasmine, who's supposed...

After seventeen-year-olds Chole and Shara, Chole's rival for valedictorian, kiss, Shara vanishes leaving Chole and two boys, who are also enamored with Shara, to follow the trail of clues she left behind, but during the search, Chloe starts to suspect there might be more to Shara and her small Alabama town than she thought.