Imagine if cell phones are banned at schools. That's what happens at Branton Middle School in Posted. Without their phones, students start writing post it notes to one another and leaving them in all kinds of places- lockers, desks, binders. At first, the notes are fun and cute, but when Rose, a new student at Branton enters the picture, the notes begin to take an ugly turn. Frost and his friends have to find a way to do the right thing in the sticky note war.