Henry, feeling lonely on a street without any other children, finds companionship and love in a big dog named Mudge

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

A cumulative tale about a small dog named Gracie whose quiet life is disrupted by some noisy painters

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

Although Henry's cousin Annie likes his dog Mudge, when she gets her own pet she decides that a bunny will be perfect for her.

Henry and his big dog Mudge celebrate Henry's birthday with a piñata, a lively birthday party, and a cake shaped like a fish tank, making May first the best day ever

When Henry and his big dog Mudge see a spy kit for sale, they know right away that it's time to break open the piggy bank. With their spy hat and magnifying glass and secret code card, Henry and Mudge can flirt with danger, steal secrets, and start cracking codes. On their first spy mission, Henry tells Mudge to try not to look suspicious. Mudge rolls in the mud and chews on an old shoe, so no one will ever think he's a spy. But then Henry finds a...

Trying to be neighborly, Mr. Putter decides to serve tea to Mrs. Teaberry's knitting club but chaos ensues when Tabby the cat and Zeke the dog find the party irresistible

It's summertime and Henry and his big dog Mudge share their prime time together in three adventures: a picnic, in a comical bath scene, and in a make-believe game.