There's a new girl at school who makes quite an impression on Ezra -- then the Inbestigators get their very first case.

Pixie's solar system diorama has gone missing, but did she make one in the first place? Maudie figures out who sabotaged Zac's dance recital.

Ava is devastated when Pixie stops talking to her after a sleepover. The new boy in school can fit a very big cookie in his mouth -- but how?

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.

The Inbestigators get hired to solve a mystery at the science fair, much to Ezra's delight. The star of the school play gets hurt during rehearsals.

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.

A little girl's drone flies off and disappears -- but the Inbestigators witnessed everything. For her birthday, Maudie's dad stops by the office.