"Who's afraid of middle school? Not Katie Brown. After all, it can't be that different from elementary school. But, boy, was she ever wrong! After her best friend ditches her for a new group of friends called the Popular Girls Club, Katie is left alone and starts to wonder if there's an Unpopular Girls Club she can join. Luckily, Katie finds her way with a great new group of friends and together they form their own club. Four friends plus cupcakes...

Alexis Becker loves to organize and plan and set goals, which is why she is in charge of the business end of the Cupcake Club. But when she suddenly develops a major crush on Matt Taylor - who happens to be Emma's brother - things get a little disorganized.

Wanting to pay for her junior bridesmaid dress herself, Emma quickly finds herself challenged with not enough time to keep up with her various part-time jobs.