After spending the night studying the Joyce Kilmer Middle School Handbook, Jenny McAfee feels totally prepared to start sixth grade. But Jenny has another reason to feel confident. She'll have her best friend, Addie Wilson, right there by her side. When Jenny and Addie meet at their lockers the next morning, Jenny finds out that Addie has other plans--and they don't include her. Could Addie really be ditching her for The Pops--the coolest seventh graders in the school?