Elizabeth and Jessica are starting middle school together, but the twin sisters soon realize they have different interests and it is good to become their own person.

After she betrays her identical twin, Jessica Wakefield longs for forgiveness, but Elizabeth moves from Sweet Valley, California, to New York City and searches for the perfect revenge.

In her struggle to protect her best friend from getting hurt, Elizabeth finds herself torn between Amy, who is determined to join the Unicorn Club's cheering squad, and her twin sister Jessica, who is one of the Unicorns who do not want Amy on the team.

When the PTA announces a bike-a-thon, Lois Waller is determined to show everyone how well she can do, but Bruce Patrman is equally determined to see her efforts fail.

Elizabeth and Jessica Wakefield, twin sisters and the best dancers in their ballet class, both want to dance the solo in the class recital, but Jessica is convinced Elizabeth will get it because she is the teacher's pet.