After Maudie, a ten-year-old puzzle prodigy, solves a crime on her ﬁrst day at school with her new classmates Ezra, Ava and Kyle, the future is obvious: the four children must form a detective agency together. Operating out of the granny ﬂat in Ezra’s backyard, these funny and disparate kids from Grade Five solve one thorny school playground or neighbourhood mystery after another, and become best friends in the process.
Episode 1 The Case of the Curious New Girl
When Maudie solves a playground robbery on her ﬁrst day at school, she and new friends Ezra, Ava and Kyle create The Inbestigators Detective Agency.
Episode 2 The Case of the Disappearing Deliveries
When Sophie’s online shopping parcels are delivered but never received she hires the Inbestigators to track them down.
Episode 3 The Case of the Missing Solar System
Pixie is horriﬁed when her space diorama goes missing and Miss Tan falsely accuses her of not doing her homework.
Episode 4 The Case of the Distressed Dancer
When his dance troupe’s concert routine is sabotaged, Zac hires the Inbestigators to ﬁnd out who at the dance academy is responsible.
Episode 5 The Case of the Sleepover Secret
Pixie is furious when something she privately told Ava is made public, so Maudie resolves to ﬁnd out how Pixie’s secret got out.
Episode 6 The Case of the Big Mouth Challenge
When Ben mounts a competition to see who can ﬁt a very large biscuit in their mouth like he can, Maudie is suspicious.
Episode 7 The Case of the Pestering Prank Caller
When a prank caller targets Ezra and his neighbours, Maudie believes the Inbestigators can track down who is making the mystery calls.
Episode 8 The Case of the Spoiled Sports Day
At the sports carnival, Kyle loses his temper when he doesn’t win a race, but Maudie suspects there might be more to Kyle’s unexpected loss.
Episode 9 The Case of the Exciting Excursion
The Grade Five rock climbing excursion is jeopardised when the permission slips go missing, but Maudie suspects they may have been hidden on purpose.
Episode 10 The Case of the Very Lost Notebook
When Maudie loses her beloved notebook Ezra, Ava and Kyle band together to reunite their friend with her most prized possession.
Episode 11 The Case of the Suspect Sprinkler
When the timer on Mrs Maniaci’s sprinkler system is tampered with before the ‘Garden of the Year’ competition, the Inbestigators must track down the culprit.
Episode 12 The Case of the Peculiar Pop Quiz
Maudie and Ava inﬁltrate Mr Barker’s grade six class to watch his famous pop quiz, where Maudie uncovers a crime.
Episode 13 The Case of the Science Sabotage
When Annie’s science fair experiment is stolen, the Inbestigators must track it down before the judging commences.
Episode 14 The Case of the Wrecked Rehearsal
When Esther is injured in the&nbsp; dress rehearsal of the Grade&nbsp; Five play, Maudie must&nbsp; ﬁgure out who caused the&nbsp; mishap before showtime.
Episode 15 The Case of the Perplexing Painting
When Esther’s painting is damaged during the Art Show, Maudie has trouble proving who ruined the artwork without ﬁnding the evidence ﬁrst.
Episode 16 The Case of the Turtle Thief
When a turtle is stolen from Ryan’s back yard, Ezra offers the agency’s services but Maudie is convinced something about the robbery doesn’t add up.
Episode 17 The Case of the Misplaced Mug
Mr McGillick is upset after he loses his precious ‘World’s Best Principal’ mug so Ezra makes it his personal mission to get it back.
Episode 18 The Case of the Sad Little Sister
Poppy loses her school hat and is forced to sit in the shelter shed, where Maudie discovers there may be more to the missing hat.
Episode 19 The Case of the Disoriented Drone
After a little girl’s drone is blown away, the Inbestigators must prove that a boy in a neighbouring house has claimed it as his own.
Episode 20 The Case of the Baﬄing Birthday
Ava wants to give Maudie her ﬁrst proper birthday party but Maudie gets sidetracked by a mystery.