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 dress rehearsal of the Grade Five play, Maudie must ﬁgure out who caused the 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.
Episode 21 The Case of the Concert Catastrophe
Maudie is crushed when her tickets to a pop concert go missing, especially since it seems likely that she herself has misplaced them.
Episode 22 The Case of the Soccer Saga
Kyle asks Maudie and Ava to make a video of his soccer match but Maudie discovers something about the game is not quite right
Episode 23 The Case of the Puzzling Pet Day
When the Animal Shelter visits school to audition kids for a television commercial, Maudie suspects a crime is happening right under everyone’s noses.
Episode 24 The Case of the Copy Cat
Ava is selected to deliver a speech at the town hall, but when she is accused of stealing it, Maudie must prove her innocence.
Episode 25 The Case of the Rosemary Riddle
Ezra is grumpy when his visiting Nanna interrupts his detective work until she unexpectedly gives the Inbestigators a case to crack.
Episode 26 The Case of the Robot Robbery
On Science and Technology dress-up day, Patrick is upset when his robot costume is stolen by an unidentified mad professor.
Episode 27 The Case of the Vanishing Koalas
Kakow Koalas are the latest snack sensation sweeping the playground and Mario is hungry for justice when his are stolen.
Episode 28 The Case of the Extremely Empty Freezer
Ava plans a birthday party to cheer up a lovesick Mr Barker but things go wrong when his birthday cake goes missing during the celebrations.
Episode 29 The Case of the Miraculous Mini Golfer
Convinced a customer is cheating to claim a prize, Charlie hires the Inbestigators to help save his job at the Mini Golf Park.
Episode 30 The Case of the Problematic Party
The Inbestigators promise to help when Toby’s birthday invitation to five friends is mysteriously copied and distributed to the entire class.
Episode 31 The Case of the Lousy Lunch Orders
Ezra is outraged when everyone’s treat day lunch orders are replaced with healthy food and insists on tracking down the culprit.
Episode 32 The Case of the Interrupting Intern
Maudie is upset when Ezra, Ava and Kyle promote their new intern to an Inbestigator after he surprisingly solves a case before Maudie.
Episode 33 The Case of the Freaky Frequency
When the ice-cream shop loses business because customers can’t lock their cars, the Inbestigators must uncover why all the car keys in the area have stopped working.
Episode 34 The Case of the Tricky Trimathlon
After he accidentally signs up for the Trimathlon, Kyle surprises everyone by doing well, until he mysteriously can’t find his cheat sheet.
Episode 35 The Case of the Burgled Bags
When Gary, the school’s lollipop man, is accused of stealing bags from parents’ cars, Kyle is devastated and determined to clear his name.
Episode 36 The Case of the Distracted Detective
Ezra is nominated for the Young Small Business Awards but as the event draws near, Ezra is increasingly upset and Maudie must find out why.
Episode 37 The Case of the Fishy Fundraiser
Amelia resents her fundraising cupcake stall being upstaged by a lemonade stall, so when things go sour, Amelia is accused of sabotage.
Episode 38 The Case of the Incredible Fortune Teller
Ezra and Ava’s friendship is tested when Ramona’s fortune telling predictions come between them during the Coins for a Cure fundraiser.
Episode 39 The Case of the Unhappy Camper
When Mr McGillick’s phone goes missing at the Grade Five camp, Kyle is accused of hiding it as part of a prank.
Episode 40 The Case of the Triple Inbestigation
While on the hunt for Ezra’s missing goldfish, Maudie uncovers two more puzzling mysteries to be solved.