A prank caller keeps bothering Mrs. Maniaci in the middle of her soap opera. Kyle's favorite event of the year goes terribly wrong.

If Miss Tan doesn't find everyone's permission slips, the class will miss their field trip! Maudie's beside herself after losing her special notebook.

Mrs. Maniaci's roses are ruined by a tampered sprinkler system. The students in Mr. Barker's class seem to be up to something.

It's an emergency when Mr. McGillick's "World's Best Principal" mug goes missing. Poppy's lost her hat, and now she can't play outside.

Maudie stashed a stack of tickets in a drawer for safekeeping, but somebody took them. A so-so soccer player is suddenly a lot better than he used to be.

The latest snack craze sparks a theft at school. The kids throw Mr. Barker an awesome '80s-themed birthday party. Trouble is, they can't find the cake.

Ezra ordered pizza and got ... a salad roll. Who swapped the students' Treat Day lunches for healthier food? Then, the Inbestigators take on an intern.

Who slipped Mr. McGillick's phone into a tub of rice -- and why? Later, the Inbestigators film a commercial. But first they have to find Ezra's fish.