Walter's family is holding a yard sale, but there are few customers. Walter, farting contentedly near Father, wonders why. When a man offers ten dollars for Walter, Father readily agrees. Walter wonders why. Walter is sad to leave his family behind, but relieved to discover that his new owner is a clown.
Professor Kompressor visits Walter's family, offering a remedy for the dog's digestive disorder: special food that must be mixed in his Kompressatron. Unfortunately, the professor's cure doesn't work, so Father has to take matters into his own hands. Father's combination of ingredients has a strange effect on the pooch. Walter blows up like a balloon and floats out the window! Just when it looks as though Walter's paws may never touch earth again, he encounters a flock of butterflies in distress.
"A parent's nightmare and a little boy's dream"
It's a fabulous floating palace, and everybody on it is having the time of their life...until a mysterious and terrible odor begins to permeate the splendid ship. What can this awful odor be? All signs point to Walter, and so he is banished down below, with the stinky cheeses. Walter doesn't mind - at least he has something to snack on. But not even the cheese room can contain Walter's powerful farts. So they lower him onto a lifeboat, and he is forced to travel alone behind the ocean liner.
"Hilarious for three year olds"