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.
When a broken ankle forces Marion to withdraw from the horse show, she finds a way to stay active by helping her friends at the Critter Club animal shelter find homes for a litter of kittens.
Fifth-grader Piper and her sisters are thrilled about their first-ever camping trip until they learn it will be at Halloween, but other Navy families join them, including an annoying new member of the Gypsy Club.
The mothers of four very different sixth-grade girls pressure them into forming a book club, and find, as they read the classic novel "Little Women," that they have more in common than they thought.
Claudia's participation in the Baby-sitters Club is curtailed when Grandmother Mimi suffers a stroke and Claudia finds herself "Mimi-sitting," and fighting more frequently with her sister.
Young Paul Revere and his friends form a club whose members ring the bells at Christ Church, an experience which teaches him responsibility and other lessons that he uses as an adult in the American Revolution.