What-a-Mess is forced to be a servant for Trash, who has just moved into the neighborhood.
What-a-Mess unintentionally causes chaos at a museum, while avoiding a hotheaded curator.
What-a-Mess wakes in the middle of the night to look for food.
What-a-Mess encounters several obstacles on his first day of obedience school, including an overly strict teacher and a merciless bully.
What-a-Mess and Norton go to the Junkyard to see the ghost of Junkyard Jones, of course, Felicia will scare the pups to death with Her tricks.
What-a-Mess prepares the house for the arrival of cats and dogs that will be "raining" down on him.
Chaos ensues when Trash invites a few friends over to What-a-Mess's home after learning he's going to be left alone for the day.
What-a-Mess is forced to endure the ordeal of Poppet's mean personality.
What-a-Mess is put into a kennel while the Family goes on vacation.
What-a-Mess seeks revenge against Felicia for tricking him into thinking he can grow a tree that sprouts dog bones.
What-a-Mess turns to the Buyer's Bargain Network to get a Birthday gift for his mother. Though when Felicia found out about it, it quickly made her into a shopaholic.
Trash shows What-a-Mess how to defend himself.
Chaos ensues when What-a-Mess and Trash attempt to deliver Duchess's special collar to her while she's competing in a dog show.
Chaos ensues when a ruffled What-a-Mess tries to avoid a groomer's shears by taking a wild and bumpy ride through town.
What-a-Mess tries to get the daughter's science project to her school.
The Mail Carrier tries unsuccessfully to get past What-a-Mess and deliver the mail.
What-a-Mess runs scared of what He thinks is a monster in the house.
What-a-Mess's first taste of Halloween festivities turns sour when he loses sight of his boy and girl and maneuvers his way through a sea of costumed characters to find them.
What-a-Mess has some tea time with Frank.
What-a-Mess finds that he's far away from home after being mistakenly thrown out with the trash. During his adventure, he meets President, a street-wise dog who helps him find his way back home.
What-a-Mess and Felicia feed Trash some food with fertilizer, making him stiff as a board.
What-a-Mess competes in a Frisbee catching competition and can only catch flying pizzas.
What-a-Mess and his buddies must defend their corner fire hydrant from a rival gang.
Trash finds himself dangling off a bridge with his life flashing in front of him.
On an outing to the snow, What-a-Mess sneaks out of the mountain cabin while the family is off skiing!
What-a-Mess, Felicia, and Trash re-enact the story of the Pilgrims and the first Thanksgiving.
What-a-Mess' first Christmas finds him questioning the truth about Santa and the holiday.
The pooch's family takes him shopping and leaves him tied to a bench outside of a local mall. It isn't long before he sneaks out of his collar and into the mall, where he befriends a British gerbil who knows her way around the stores.
What-a-Mess is all tied up with no place to go when his family takes him to the movies but leaves him outside. After learning his favorite actor Wonder Pup is starring in the film, he breaks free from his leash and sneaks into the theater, only to be frightened away by the size of the screen.
The pooch mistakenly ends up on the wrong plane when his family decides to take him on vacation with them. They're going to Pittsburgh; he's heading to Afghanistan.
The pooch and his family are invited to Poppet's birthday party.
Puppy love follows What-a-Mess to the park as the pooch becomes smitten with an adoring poodle. But the joy is short-lived when the poodle's boyfriend challenges What-a-Mess to a battle for the girl, which he gently declines. Enter Trash, who eventually comes to the aid of his friend and saves the day.
The enthusiastic pooch's family hires a security consultant to help him sharpen his guard-dog abilities. Later, the training comes in handy when he succeeds in apprehending a local prowler and earns his family's respect.
When Ramona the Mole tunnels her way through What-a-Mess's owner's garden she calls the Super Exterminator to help her get rid of her problem. It's now up to the pooch and his friend, Felicia, to save their furry friend from the tragic fate that awaits her.
Trash and What-a-Mess find themselves in a heap of trouble when they get thrown in the pound because of Trash's shoplifting. Now it's up to What-a-Mess to dig a tunnel that leads him and his crafty canine companion to freedom.
What-a-Mess is selected to taste a new line of dog food, a fact that's not lost on Trash, who manages to nose his way into the factory. It's not long before the two find themselves embroiled in a competition to become the best “taster” and walk away with a case of free dog food.
A friendly puppy comes over for a visit, but no one wants to play with him. Enter What-a-Mess, who discovers his canine playmate's sloppy problem and helps him overcome it.
What-a-Mess's owner takes him on his Ranger Scout camping trip, where he vies against other dogs and boys for a trophy. The pooch ultimately fails at almost every event, but later redeems himself, when he rescues some frightened campers from a ferocious bear in a cave.
Felicia's nicer cousin, who bears an uncanny resemblance to Felicia, drops by to visit with the gang. What-a-Mess and his friends are fooled into thinking Felicia has changed her attitude, but it's actually her look-a-like cousin who enjoys playing in the mud and is kinder to the group.
Everything's coming up roses for the pampered pooch when he finds a lucky pretzel. But his fortunes are short-lived when Felicia and Trash try to steal a piece of the action.
The mischievous pooch finds himself in hot water---and on the way to a visit with the vet---when he swallows a remote control for the garage door.
What-a-Mess takes a bite out of show business when he auditions for the role of Toto in the kids' school play. The wrinkle in his plan involves Trash and Felicia, who are also putting their best paws forward to win the part.
What-a-Mess accidentally causes chaos and calamity in the town driving a convertible.
Baldwin turns to What-a-Mess to help arrange a reunion for the bird's family.
What-a-Mess and Felicia have fun singing at night time.
What-a-Mess and Trash are zapped in a spaceship by cat-like aliens.
What-a-Mess, Felicia and Norton are confounded by itchy fleas (contains a scene of blood when the fleas first bite into What-a-Mess)
What-a-Mess decides to go hunting for His food when the family forgets to feed Him.
What-a-Mess has the boy take Him on a walk, but not without consequences.
What-a-Mess has amnesia, but Felicia and Trash take advantage of His situation.
After being drenched with water by What-a-Mess, Felicia decides to pull a prank on What-a-Mess at the pool.
Trash is trying to sleep, but Norton and What-a-Mess' playful nature keeps Him awake.
What-a-Mess falls for a female afghan hound who is a circus performer.