A trip to the Natural History Museum goes completely wrong. When Katie won't participate in her classmates shenanigans, they call her a goodie-goodie when she doesn't join in. The mean tour guide, Mr. Weir isn't making things any better. When Mr. Weir's meanness rubs off on Katie, the trip suddenly gets a whole lot worse. Can Katie make things right?
Katie and Suzanne are so excited - they won tickets to see their favorite rock group, the Bayside Boys, at the Cherrydale Arena! And not only do they get to see the show, but they get to attend the dress rehearsal and go backstage to hang out with the group! But when the magic wind turns Katie into one of the band members in the middle of the rehearsal, she manages to break up the band just before the big show! Will Katie be able to get the Bayside Boys back together again?
Katie's best friend Jeremy and the other boys from Class 3A have decided that all girls have cooties. But when Katie finds herself in one of Jeremy's shoes (literally), she tries to reunite the boys and the girls. Will Katie's plan work? Or will it just be one big mess?
Katie and her friends are so excited when they find out that a movie is being filmed in their town. And what makes it even better is that the star of the movie is Rosie Moran, the world's most popular child actress. Katie not only gets to meet Rosie, but she turns into her. Will Katie shine in the spotlight, or will she get stage fright?
Becky is the new girl in class 3A, and she's a great big copycat! She's trying to be just like Katie's best friend Suzanne. She follows Suzanne around, dresses like her, and steals Suzanne's class report topic. Suzanne can't stand Becky! Then, the magic wind turns Katie into Becky. Will Suzanne change her mind about the new girl? Will Katie turn back into herself without causing too much trouble?
It's been a couple of weeks since Katie turned into the class hamster, and she's beginning to hope that maybe her transforming days are through. But more excitement lies ahead for Katie as she becomes Lucille, the cafeteria lunch lady! Unfortunately, the principal isn't too happy with a lunch lady who throws egg salad and starts food fights...so it's up to Katie (back in her own body) and her classmates to save the day.
When Katie's teacher moves in next-door, Katie can't believe her bad luck! Nothing could be worse than your own teacher living next-door: or could it? Mrs. Derkman hates dogs, and she wants the dogs on their street to be kept on leashes at all times! Katie is furious. Then the magic wind blows, turning Katie into her own dog, Pepper. Will she be able to convince her teacher that dogs are not all bad?
Katie is loving fourth grade, is making some fabulous fans, and finds the track team a blast. But when Coach Debbie keeps Katie on the bench, Katie finds that slightly unfair. Yes, she is the slowest, but she wants to complete with the rest of her teammates. When the coach finally gives Katie her chance to shine, will she help or hurt the team?
Katie offers to help the owner of her favorite pizza shop run a pizza-eating contest. But when Katie turns into Louie the chef, how will the pizzas for the contest get made? Katie's clueless! She's never cooked anything without her mom before!
Katie's class is going on a two-day science field trip to Nature School. The Nature School counselor is named called Genie: Genie the Meanie! Genie is very strict and doesn't want the kids to have any fun. She's ruining the field trip! When Katie turns into Genie and is left leading her class on a hike, she gets them totally lost! Back in her own body, how will Katie get things on track again?
When Katie turns into her best friend Suzanne's baby sister, Heather, things are bad enough. But when Katie, as Heather, speaks to Suzanne, Suzanne things that her baby sister is a genius! How will Katie ever explain to Suzanne that it wasn't really Heather doing the talking, without spilling her big secret?
Becky, the new girl in class 3A, is a great big copycat! She copies everything Suzanne does. Suzanne can't stand Becky! Then the magic turns Katie into Becky. Will Suzanne change her mind about the new girl? Will Katie turn back into herself without causing too much trouble?