"It's way harder being a guy than a girl." "Is not." "Is too." "Is not!" "Is too!" So begins another madcap McDoogle mishap as Wally agrees to switch places with Wall Street (his best friend even if she is a girl). Teachers, parents, friends, everyone is in on the act as the two try to survive 72 hours in each other's shoes. It's a custom-made Wally catastrophe that includes: exploding Home Ec cookies (apparently Wally used gun powder instead of baking powder), baby-sitting a mob of out-of-control monster babies, and imprisoned 2.2 hours in the bathroom every morning to fix his hair. Last, and by no means least, Wally must replace Wall Street as a star in The Nutcracker ballet! All in all it becomes one of Wally's greatest misadventures as he finally learns the important lesson of honoring and respecting others.

At the suggestion of their speech teacher, Wally and his good friend Wall Street agree to switch places for three days to prove whether boys or girls are better.

Just when you're sure Wally has bungled through every misadventure imaginable, this nerdy kid stumbles, staggers, and k-splats his way smack dab into a brand new frontier - the human body. When he and Wall Street, his best friend (even if she is a girl), visit a local laboratory, they are accidentally miniaturized and swallowed by some unknown stranger. It is a race against the clock (let alone Wally's own klutzoidness) as they fly through various parts of the body - from the stomach to the blood system to the brain to the eye - in a desperate search for a way out while all the time learning how "fearfully and wonderfully we are made."

It was just a little lie. But mishap follows mishap until Wally is chased by bungling terrorist, a SWAT team, the TV news, and the National Guard. It isn't until he risks his life to save his country (and has a little chat with the President along the way) that the madcap misunderstanding finally end. . . And Wally learns that honesty really is the best policy.

Only master of mayhem Wally McDoogle can turn an innocent game of laser tag into international espionage. From the Swiss Alps to the African plains, Agent 00 1/7th bumblingly employs such top-secret gizmos as rocket-powered toilet paper, exploding dental floss and the ever-popular transformer tacos (don't laugh, they get great gas mileage) in a desperate attempt to stop the dreaded and super secret . . . Giggle Gun. It isn't until Wally finally takes responsibility for his actions (which unfortunately involves leaping out of a jet fighter traveling 1.2 gazillion miles an hour), that he is finally able to save his life. . . And while he is at it, the entire free world.

Look out California, here comes Wally McDoogle! Our boy blunder gets his big break to star with his Uncle Max in the famous Fantasmo World stunt show. Unlike his father, who Wally secretly suspects to be a major loser, Uncle Max is everything Wally longs to be. . . Or so it appears on the surface. Unfortunately, Fantasmo World will never be the same, as in typical McDoogle Mayhem, Wally discovers the truth and learns who the real hero in his life is.

When Wally, Opera, and Wall Street win the Gazillion Dollar Lotto, they confront the dangers of greed and materialism through a series of incidents involving bungling bad guys, a break-in to the zoo, and a SWAT team.