Episode 1 - Cockroach Capers

Sally is banned by her father from investigative work, however she disobeys him and with Doowee investigates a mysterious cockroach thief.

Episode 2 - Talent Will Out

Andy wants to compete in a TV talent show, but the star of his act, a hamster, has been stolen. Sally is also taking part in the contest and discovers that several of the acts - including her own, are being sabotaged.

Episode 3 - Don't Touch My Lucky Charm

Jaya, the best student in the class, has lost her good luck charm right before a couple of important exams. She doesn't feel confident enough to sit the exams without her charm, so she asks Sally and Doowee to investigate.

Episode 4 - The White Bear

Louis is upset that his dog is missing. However, his father, Fluff Daffy, a famous R'n'B singer, doesn't seem to care because he is more concerned about his big diamond, the White Bear, which has also gone missing.

Episode 5 - Cousin Bouleh

Sally's cousin, Bouleh, is due to return to India after staying with Sally for several days. Sally is glad that he is going because she found him very annoying.

Episode 6 - Trouble at the Museum

Sinitta is accused of stealing sweets at a modern art museum, and she wants the SBI to prove her innocence. Sally does not trust Sinitta but Dowee is charmed by the pretty girl, and insists that they investigate.

Episode 7 - Trapped by the Internet

Sally and Doowee attempt to discover who is the person placing digitally manipulated images on 'Blogger Boy's' blog, which leads to a virus being spread across the world.

Episode 8 - SOS Saris!

The saris of the school's Indian dance troupe have been stolen, so the dancers ask the SBI to investigate. But Sally and Dowee suspect different people, so they have a disagreement and conduct separate investigations.

Episode 9 - Window Pains

After three windows are broken at school, the Principal's son asks Sally to investigate. However she questions his intentions when she learns the Principal has already found the culprit.

Episode 10 - Chemical Reaction

Francis claims his books have been stolen on the eve of a chemistry test. However, when Sally and Doowee investigate they soon find the books. Doowee is ready to close the case but Sally does not want to give up so easily.

Episode 11 - Double Trouble

Sally is in big trouble. A teacher's stolen purse has been found in her desk, and so she is suspended from school. This means she is unable to go to school to investigate who really put the purse in her desk.

Episode 12 - George's Forced Labour

George, one of the popular boys, goes to the SBI because someone is threatening to show the whole school a photo of him sleeping with a teddy bear if he doesn't do his homework and leave it for the blackmailer to pick up.

Episode 13 - From Bombay with Love

A TV star asks Sally and Doowee to investigate leaks to the media.

Episode 14 - The Case of the Missing Cat

Cassie, a new girl at school, becomes very popular when she boasts about her beautiful cat. However, when her friends ask to see it, the cat suddenly goes missing. Cassie's friends ask Sally and Dowee to investigate.

Episode 15 - Bus Stop

Sally's class is about to leave for a week's skiing excursion.

Episode 16 - Go Kart Wars

Episode 17 - Room With A Curse

Vanilla is terrified: she believes her bedroom is haunted by the spirit of a local legend. Sally the pragmatist doesn't believe in ghosts and is determined to solve the mystery.

Episode 18 - The Guardians

Episode 19 - Mr. Big

Business has been very slow at the SBI for the past few weeks. No clients, no mysteries, nothing.

Episode 20 - Operation Nerd

Against the background of the election of the school's most popular student, Sally and Doowee have to uncover the identity of whoever is supplying the school students with highly sophisticated cheat notes.

Episode 21 - Liz's Secret Diary

Liz's secret diary has been stolen from her locker and, each day, the thief sticks up some of its pages on the school walls. The diary pages are far from flattering, which upsets many of the students.

Episode 22 - The Killer Curry

The best student in school is alarmed when his report card shows he has failed every subject except sport. Meanwhile a top athlete, who isn't very smart, has got an excellent report. Sally and Doowee investigate.

Episode 23 - Serial Thief

Episode 24 - Cold Case

Episode 25 - That's Rock 'N' Roll

High school rock band, the Fuzzy Frogs, discover that one of their songs has been plagiarised by TV star, Dizzie Mulligan. Sally and Doowee have to prove that the song has been illegally copied and try to find out who did it.

Episode 26 - The Walls Of Cosmopolis

When the headmaster gives graffiti taggers a wall to paint on, it is covered overnight in bad graffiti. Sam, who organised the official wall, believes it was vandalised by a rival tagger, and asks the SBI to investigate.

Episode 27 - Delayed Action Chilli Pepper

On the day of a big school swimming competition, all the students come down with a stomach illness, except Sally. Because Doowee is stuck in the school infirmary, Sally struggles to handle the investigation on her own.

Episode 28 - The Attack Of The Giant Chicken

Jason, the school basketball champion, keeps having a recurring nightmare about being attacked by a giant chicken. Certain that his dream is connected to an accident at school, he asks the SBI to investigate.

Episode 29 - Art For Art's Shake

A work of art about to be judged in the school art competition mysteriously disappears from a locked room. How did it disappear? Where did it go? Who took it and why? Sally and Doowee investigate.

Episode 30 - The Dating Agency

Episode 31 - The SBI Sees Double

Things start to go wrong for the SBI when they are tasked with investigating Kevina's missing designer hair scrunchies.

Episode 32 - Bling Bling

Odd items are being stolen from around the school - a camera, door handles, a pair of glasses and a school bag - so the SBI are called into investigate.

Episode 33 - Close Protection

Francis, a Fantasy game player, commissions the SBI for a special mission: to protect him when he goes to the 'Fantastik' cards contest, so rivals can't steal his best cards.

Episode 34 - Mrs. Apu's Old Friend

It is nearly Christmas and Mrs. Apu is worried because she hasn't seen her friend for several days. When Sally and Doowee arrive at the old man's house, they find him upset because somebody has stolen his Father Christmas suit.

Episode 35 - High School Musical Mystery

Sally's school is putting on a musical production of Little Red Riding Hood. However, someone seems to be sabotaging the rehearsals.

Episode 36 - The Formidable Miss Chicago

The kind maths teacher, Miss Smith, is having trouble keeping control of her rowdy class, so she walks out. The students are overjoyed, but Miss Smith is replaced by Miss Chicago, who is as tough as Miss Smith was kind.

Episode 37 - The Midnight Stitch-Up

Some students' clothes are secretly being altered by a mystery seamstress. They were all originally either dumped, lost or in poor condition, but are "improved" by the midnight stitch-up. The SBI investigates the mystery.

Episode 38 - The Shy Mystery

Martin comes to the SBI because his pet rabbit, Shy, seems to have changed during his holiday. Martin's friend Jaya took care of Shy while he was away, but now the rabbit has a totally different personality.

Episode 39 - Halloween Heist

The school is hosting a Halloween party in which all the sweets and candies that have been collected are to be shared among the students. But just as the party is about to begin, the lolly trolley is hijacked!

Episode 40 - Mr. Big Returns

For a school science competition, Doowee invents a machine that he says can predict the future. But before he can test it out, it is stolen. Sally and Doowee's first suspect is their old detective rival, Mr. Big.

Episode 41 - The Party

Cassie invites only selected friends to a party, which is then crashed by four masked kids who cause trouble and then leave. When Cassie asks the SBI to investigate, it becomes apparent that while Doowee had been invited to the party, Sally had not, causing a rift within the SBI. Can Sally overcome her hurt feelings?

Episode 42 - The Client in the Clouds

An eccentric young musician at Sally's school asks the SBI to investigate the disappearance of his music notebook containing his latest composition. But when the SBI checks his locker, the notebook seems to have been there all along. Could it be that their client simply has his head in the clouds?

Episode 43 - Call My Lawyer

When Bob is caught sabotaging the cakes for the school's baking competition, he calls his "lawyer," a student named Angus, who threatens to reveal secrets about the witnesses if they dare to testify against Bob.

Episode 44 - The Stink Bomb

It's the day of the School Fête and dozens of people are having fun at the various activities and stalls. During the festivities, Sally receives a mysterious anonymous phone call telling her that a stink bomb will explode at the main event in 12 minutes! Can the SBI find the bomb before it ruins the Fête?

Episode 45 - The Egg War

Well-behaved students at the school are starting to act strangely: one leaps around like a monkey while another barks like a dog. When a classroom is pelted with eggs, Sally and Doowee investigate the "crazy wind."

Episode 46 - The Fortune Teller

Sally and Doowee are investigating a missing skateboard when a boy called Alex, who claims to be a seer, offers them his help. The SBI does not believe in the supernatural but Alex seems to anticipate their every move.

Episode 47 - Two Heads Are Better Than One

It's election time for Student Representative at the school. One of the candidates, Stephanie, is making strong progress in the election campaign, when suddenly her poster is torn down. She asks the SBI to investigate.

Episode 48 - Caught Red Handed

Someone has spray-painted the playground benches red. Doowee and Sally find the can of red paint. Unfortunately, a teacher sees them with the can in their hands and assumes they are the culprits.

Episode 49 - The Missing Stamp

The new president of the school Stamp Club, Leo, has brought a very rare stamp to school, but when he goes to show it to the other club members, it's missing! Sally and Doowee take on the case.

Episode 50 - Stranger Than Fiction

A children's author comes to the school to read an excerpt from her soon-to-be published novel in a popular series. However, when she opens her briefcase, the manuscript is not there! Sally and Doowee are immediately on the case.

Episode 51 - International Day

It is International Day at school and there are flags from all around the world on display, representing the different nationalities of the kids at the school. Then mysteriously, one by one, the flags start to disappear!

Episode 52 - Doowee's Luck Runs Out

When the SBI tries to investigate a series of fruit thefts at school, Doowee's gadgets begin malfunctioning. At first he thinks the thief is deliberately interfering with his investigation, but after the culprit is caught, it is clear that he could not have sabotaged the gadgets. Doowee begins to believe he is being haunted by bad luck, so Sally sets out to prove him wrong.