Pinkalicious sneaks into Mr. Swizzle's malfunctioning cupcake machine and discovers a bigger surprise than she could have imagined.

When Katie's best friend Callie leaves her for a clique called the Popular Girls Club on the first day of middle school, Katie decides to find a group that she can join.

Twelve-year-old Isabel dreams of seeing the world but has never left Oregon, and so when her best friend, Sophie, tells her of a baking contest whose winners travel to New York City, she eagerly enters despite concerns about her mother, who is opening a cupcake bakery. Includes recipes.

When Emma's little brother Jake looks after the neighbor's dog in preparation for getting his own puppy, the pet goes missing and Emma and the rest of the girls have to find it before the owner comes home.

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.

With the first-grade bake sale coming up, art-loving Louise and her little brother make cupcakes.

Mia hears about someone at school starting a fashion club, and wonders if she can manage being in two clubs at the same time.

Reaching a compromise with her parents when they say she is too young to attend a concert alone, Mia discovers that she is being cyberbullied on social media and teams up with her fellow Cupcake Club members to discover who is behind the attacks.

Scooby and the gang investigate when their efforts to make cupcakes for the school bake sale are complicated by a meddling ghost.

Emma's younger brother Jake has tonsilitis and makes life difficult for Emma, while the Cupcake Club girls are spoiling him with cupcakes and little gifts.