On the day of Nancy's cousin's wedding, Bess and George are in charge of wheeling the wedding cake into the reception; but they notice that a giant chunk of the cake missing, and Nancy wonders who would want to ruin the celebration.
Having vowed as children never to marry after witnessing many disastrous weddings and obnoxious brides in their parents' wedding planning business, fifteen-year-old Abby is dismayed when her older sister Carol suddenly gets engaged and turns into "Bridezilla.".
Although she hasn't been invited to the wedding being held in the Plaza Hotel where she lives, Eloise finds a way to play an important role in the ceremony.
When her mother gets married, Kristy and the other members of the Baby-sitters Club have their hands full taking care of fourteen children at the wedding.
After Mabel and Violet agree to being the flower girls in their Aunt Dolores' wedding, Mabel gets carried away with the details of the wedding plans, but when things do not come out the way that Mabel wants, she tries to convince Violet to use her magic to help.
Heidi's Aunt Sophie is getting married, and guess who's the flower girl? Heidi isn't looking forward to the wedding. Her brother Henry can't wait to be the ring bearer and carry the rings down the aisle. But what happens when Henry loses Aunt Sophie's wedding ring?.
Claire is invited to serve as a junior bridesmaid at the wedding of her cousin, a commoner, to the Prince of England, and she learns that another, social-climbing junior bridesmaid is trying to keep the wedding from happening.