When the exceptionally observant Maudie manages to solve a playground robbery on her first day, she and fellow classmates Ezra, Ava, and Kyle decide to form The InBESTigators to combat crime.

When Sophie's online shopping parcels are delivered but never received, she hires the Inbestigators to find out where they are.

Mrs Maniaci's sprinkler timer is sabotaged ahead of the Garden of the Year competition, so the Inbestigators search for the culprit.

When Maudie and Ava sneak into Mr Barker's Year Six class to observe his renowned pop quiz, Maudie stumbles upon a crime.

When Annie's science fair experiment mysteriously goes missing, the team must find it before judging begins.

When Esther gets injured while preparing for the Year Five play, Maudie attempts to find out who was responsible for the mishap before the show begins.