For Henry and his big dog Mudge, summer means going on a picnic in the park, taking a bath under the garden hose, and going to the top of the big green hill.

In the autumn Henry and his big dog Mudge watch the leaves turn, meet with some Halloween spooks, and share Thanksgiving dinner.

Follows the seaside adventures of Henry, Henry's father, and Henry's big dog, Mudge.

Henry worries about what will happen to his big dog Mudge during their visit to his grandmother's house in the country.

Henry and Mudge the dog's boring weekend becomes interesting when Mom suggests building a castle in the basement.

At first Henry's very neat cousin doesn't like the cookies from under his bed or Mudge's slobbery kisses, but when they all play frisbee, she begins to enjoy her visit.

Henry's family takes in a stray cat, the ugliest cat they have ever seen, and an amazing relationship blossoms between it and their big dog Mudge.

Henry worries about what will happen to his big dog Mudge during their visit to his grandmother's house in the country.

When Henry's cousin Annie prepares to move in next door he and Mudge help calm her fears.

Henry, his 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.