Things keep going wrong at the Fuzzy Frogs' performances. Somebody is clearly sabotaging the young band, so they hire the SBI to investigate.
At a school flea market, someone steals a prized comic book and runs off with it. Sally and Doowee chase after the thief, who tosses the comic and gets away.
Kate, an exchange student from another country, is staying with Doowee's family. When her laptop, phone, wallet and pencil case are stolen, she asks the SBI to find them for her - especially her pencil case!
During a school tour of the local museum, the Curator notices someone has tampered with one of the exhibits. The school children think it is funny, but the Curator is furious and accuses one of the girls - a graffiti artist.
Alice is looking after a neighbour's pet rabbit while they are away. When she leaves it alone in her backyard for a moment, the pet goes missing - and a skateboard is stolen too!
Rebecca, the president of the school gardening club, asks the SBI to investigate an important theft: someone is stealing her compost! It's an unusual case, but the SBI sets out to investigate.