To gain leadership skills needed to run a cupcake-baking empire when she grows up, Brianna runs for president of the fifth grade--expecting little competition--until a new girl enters the race.

"Delaney is shocked to find out her mom is expecting twins. She likes being an only child. It's been 10 years, and she's had her parents--and her room--all to herself. But her cupcake club pals are excited to bake for the baby shower--until Delaney's mom wants a giant stork made out of cupcakes"--

In the midst of the excitement of Jenna's mom's wedding in Las Vegas, for which the girls of Peace, Love, and Cupcakes are making a giant wedding cupcake tower, Jenna begins to worry about changes the marriage may bring.

While trying to make something for the school bake sale, Pete seems to only be able to make a mess.

Juliette invites the cupcake club girls to London to cater her boyfriend's West End acting debut, and while there Lady and Lord Wakefield ask them to build a cupcake London Bridge for their daughter's birthday.

"Pa Peachey has gotten it in his head that he is going to be the baker in the family, and the Peacheys and their dog, McTavish, are more than a little surprised. Stunned, in fact. Ever since Ma Peachey declared herself free of the cooking responsibilities, Betty, Ava, and Ollie have taken turns making inventive and delicious meals. But Pa thinks he can do better, even though his cakes are as flat as manhole covers and his cookies turn to charcoal....

"Aven knows she's an expert baker of cakes and cookies since she's been baking with her mom for a really long time. Plus no one bakes quite like her. She cracks eggs with her feet and measures sugar and flour with her feet (plus measuring cups) since she was born without arms. And now Aven has her eye on the prize: a beautiful blue ribbon for baking at the county fair. So she teams up with her friends Kayla, Emily, and Sujata. But It turns out they...