Suzanne is sick of hearning Becky brag about her pony, but she agrees to go with Katie in their class to watch Becky ride at a horse show. During the competition, Ketie gets switcherooed into Brownie. Ketie has to concentrate if she wants to help Becky win a ribbon, but there's one very big problem: She can't stop horsing around!

Second-grader Zeke Zander, an alien from Planet Z who is concealing his identity, must hide the fact that he has the zeebop flu, which is making his eyes leak green goo.

When they hear that their teacher, Mr. G., is cutting off his ponytail and picking up a suit, the students jump to the wrong conclusion, until Katie finds out what is really happening when she turns into Mr. G.

Katie Carew decides to give her mom tap dancing lessons for Mother's Day, and when Mrs. Carew decides to audition for a television performance, Katie is "switcherooed" into her mom right before the tryouts.

While on a field trip to Romania, Ms. Frogbottom's class visits Dracula's castle, where they encounter vampires, garlic, bats, and even the legendary count himself!

As the students at his school prepare for a talent show and class presentations about Hawaii, fourth-grader George tries hard to behave but his magic super burps keep getting him in trouble.

As long-awaited fourth grade starts, Katie is overwhelmed when the magic wind causes her to switch twice--first into a new classmate and then into Mr. Starkey, the school band leader.

"George's basketball team is practicing for their next big game, and the pressure is on. That's because they're up against his rival, Louie. And the stakes are even higher when Louie challenges George to a bet: The loser has to be the winner's butler for a week! George knows his team has what it takes, except for one small problem--there are no time-outs when the super burp takes control!"--

In order to win an interview with an astronaut and a trip to space camp, George competes in a physical fitness contest, but in his determination to win, he misses how much this prize means to his friend, Alex.

When the magic wind turns fourth-grader Katie into her friend George, who has been playing practical jokes to liven up their school, she has to figure out how to get him out of trouble and sooth everyone's hurt feelings.