A princess who would rather be a knight accepts her skeptical king father's challenge to perform good deeds in order to prove her worthiness to attend knight school, an endeavor that is supported by a friendly dragon and a perpetually terrified knight-in-training.

There's trouble in the kingdom of Salamistonia! Ever since an evil wizard kidnapped Lester the jester, laughter and smiles have disappeared. Now Princess Pulverizer has the perfect opportunity to complete the next good deed on her Quest of Kindness: a rescue mission!

Katie accidentally switches places with her best friend's baby sister, and must figure out a way to explain how the baby was able to talk without letting anyone know what really happened.

Katie has plans to go to Suzanne's all-girl sleepover party, but Jeremy wants her to ride the hot new rollercoaster. Annoyed, Jeremy and the other boys from Class 3A decide that all girls have cooties. When Katie finds herself in Jeremy's shoes-literally-she tries to reunite the boys and girls. Will Katie's plan work? Or will it just be one big mess?

Fourth-grader Katie is concerned when an older girl uses live mice in a science fair project, but when Katie turns into the sixth-grader and has to run the experiment herself, she has a different opinion of the student.

Suzanne is sick of hearing 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, Katie 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!

Logan and Java need to make money fast, but none of their plans work out quite as they intended.

When Princess Pulverizer and her friends, Lucas and Dribble the dragon, hear about an evil beast capturing townspeople, the trio set out to find and rescue the prisoners, but their mission is imperiled when Lucas and Dribble are abducted.

Learning is an adventure in Ms. Frogbottom's class, because she's got a magic map - one that takes her students all over the world to do battle with mythical monsters no one believes are real. All Ms. Frogbottom has to do is take out the map, tap a country and ... off they go to a place somewhere far, far away. When Ms. Frogbottom's crew lands in Scotland, they come nose to nose with the legendary Loch Ness Monster! --

Impatient to end her Quest of Kindness and finally become a knight, Princess Pulverizer falls under the spell of an evil witch.