When his puppy Mudge gets dirty, Henry has some trouble giving him a bath.

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

No one loves to play more than Henry's puppy, Mudge. And when Fluffy the cat joins Mudge for a play date, the games are just beginning. From running to hiding to climbing galore, these two just might prove that cats and dogs really can be friends.

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'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, his dog Mudge, and his father enter a snowman building contest at the local park and win third place.