Henry and Mudge celebrate the Christmas season with their family.
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.
In the not-so-pretty house where she lives with her dad and bunny Snowball, Annie plans to make some changes in the decor with the help of her next-door neighbor and cousin Henry and his big dog Mudge.
Mudge looks forward to the Mother's Day surprise that Henry and his father cook up for Henry's mother.
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.
Henry, feeling lonely on a street without any other children, finds companionship and love in a big dog named Mudge.
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.
While trying out the spy glasses, spy hat, and other items in their new spy kit, seven-year-old Henry and his dog Mudge make a new friend and form a spy club.
Henry, his big dog Mudge, and his parents go on a quiet camping trip to Big Bear Lake, enjoying the clean smell of trees and wonderful green dreams.
When Henry and his dog Mudge go with Henry's parents to visit Great-Grandpa Bill in the home with lots of other grandpas, they lead them all on a wonderful adventure.
Henry and his dog Mudge are invited to a sleepover in Patrick's attic, where they watch monster movies, eat pizza, and enjoy a contest to determine whose dog is the best popcorn catcher.
Henry is excited when his Uncle Jake builds him a tree house but worries that his dog Mudge will not be able to enjoy it with him.