Annie and her pet rabbit, Snowball, invite Henry and Mudge to a dress-up birthday party, but there is some confusion about what the guests are supposed to wear.

Annie forms a club for girls who love teacups and other dainty things, but she will always love her cousin Henry and his big drooly dog too.

Annie and her bunny watch and wait as a nest is built above the porch swing, and eventually they get to see the mother bird feeding her babies.

Annie takes her rabbit to the home of her new friend, Sarah, to play and enjoys seeing the pretty house full of frilly things, walking in the beautiful garden, and making a tiny garden house for a fairy tea party.

Annie and Henry join the summer reading club at the library, and vow to be "Book Bugs" for life.

Annie goes on a surprise road trip with her dad and her pet bunny, Snowball.