International Day: It's International Day and flags from all around the world are put up at the school. Then the flags mysteriously start to disappear. Sally and Doowee uncover the culprit. (S1 Ep52)
Cold Case: When the Janitor was a student at school he was accused of stealing a trophy. Now that the trophy has been returned, the Janitor wants the SBI to find out who really stole it. (S1 Ep25)
The Killer Curry: Nigel, the best student in school, is alarmed when his latest report card shows he has failed every subject. Sally and Doowee investigate. (S1 Ep23)
Go Kart Wars: While practising for a go-kart race at school, Mika, the race favourite, loses control of his kart and crashes. Believing it to be sabotage, Mika asks the SBI to investigate. (S1 Ep22)
The Dating Agency: Sally's and Doowee's maths teacher, Miss Smith, has been behaving strangely. When the SBI investigate, they discover that Miss Smith has a crush on a certain someone... (S1 Ep21)
The Guardians: Sally's father commissions the SBI to investigate a gang of kids who are making a racket at night and disturbing the neighbourhood. (S1 Ep20)
Stranger Than Fiction: A celebrated children's author comes to the school to read an extract from her novel. However, when she opens her briefcase, the manuscript is not there! (S1 Ep14)
Cousin Bouleh: Sally's annoying cousin, Bouleh, is due to return to India after staying with Sally. However, Bouleh's plane ticket suddenly goes missing and it's up to Sally to find it! (S1 Ep13)
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 goes missing. (S1 Ep12)
Mr Big: Business has been slow at the SBI and when Sally investigates they soon discover that a rival detective agency has opened up. The SBI now need a big case to win back their clients. (S1 Ep10)
Double Trouble: Sally is in trouble. A teacher's stolen purse has been found in her desk. Can she get to the bottom of the crime and prove her innocence, even though she has been suspended? (S1 Ep8)
Chain Reaction: Francis claims his chemistry books have been stolen. However, when Sally and Doowee investigate at Francis' house, they soon find the missing books lead to a greater mystery. (S1 Ep6)
Window Pains: Martin, the headmaster's son, wants the SBI to investigate a broken school window. But Sally is suspicious that the crime is a trap set to distract her from her math's exam. (S1 Ep5)
Talent Will Out: Andy wants to compete in a TV talent show, but the star of his act, a hamster, has been stolen. As Sally begins to investigate, more of the acts are also sabotaged. (S1 Ep3)
Trapped by the Internet: Stan, the Goth boy, comes to Sally claiming to be a victim of cyber-bullying. Sally and Doowee investigate and soon discover some big surprises. (S1 Ep2)
Cockroach Capers: Sally and Doowee investigate the disappearance of a student's project. However Sally's father doesn't want her to do any more investigations until her schoolwork improves. (S1 Ep1)
International Day: It's International Day and flags from all around the world are put up at the school. Then the flags mysteriously start to disappear. Sally and Doowee uncover the culprit. (S1 Ep52)
The Missing Stamp: The new president of the school Stamp Club, Gavin, has brought a very rare stamp to school, but when he goes to show it to the other club members, it's missing! (S1 Ep50)
The Egg War: When a classroom is pelted with eggs, Sally and Doowee start to investigate the 'crazy wind' that is blowing through the school and uncover a secret organisation. (S1 Ep46)
Call My Lawyer: When Bob is caught red-handed sabotaging the cakes in the school's baking competition, he blackmails the witness into not talking. But can the SBI turn the tables around? (S1 Ep44)
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. (S1 Ep43)
The Party: Cassie invites selected friends to a party, which is then gatecrashed by four masked kids who cause trouble. Cassie asks the SBI to investigate the incident. (S1 Ep42)
Doowee's Luck Runs Out: When the SBI try to investigate a series of fruit thefts at school, Doowee's gadgets start to malfunction. He begins to believe he is being haunted by bad luck. (S1 Ep41)
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's stolen. Can he and Sally find the culprit? (S1 Ep40)
Halloween Heist: The school is hosting a Halloween party with lots of sweets. But just before the party is about to begin, the lolly trolley is hijacked. The SBI are hired to investigate. (S1 Ep39)
The Shy Mystery: Martin comes to the SBI because his rabbit, Shy, seems to have changed during his holiday. Sally and Doowee look into what might have altered Shy's personality. (S1 Ep38)
The Midnight Stitch-Up: At school, some pupils' clothes are being altered by a mystery seamstress. The SBI investigate the mystery, but are surprised when they discover who the culprit is. (S1 Ep37)
Sally's school is putting on a musical production. However, someone seems to be sabotaging the rehearsals, so the director asks Sally to join the cast to keep an eye on things. (S1 Ep35)
It is nearly Christmas and Mrs Apu is worried that she hasn't seen her neighbourhood friend for several days, so she asks the SBI to investigate. (S1 Ep34)
A fantasy game player commissions the SBI to protect him when he goes to the 'Fantastik' cards contest, so rivals can't steal his best cards. (S1 Ep33)
Odd items are being stolen from around the school - a camera, door handles, a pair of glasses and a school bag. The SBI are called in to investigate. (S1 Ep32)
Kareena Kahn is a temperamental teenage movie star whose tantrums on the set of her latest film are being leaked to the media. She approaches the SBI to investigate. (S1 Ep31)
Jason, the school basketball champion, keeps having a recurring nightmare about being attacked by a giant chicken. It is affecting his basketball playing, so he asks the SBI to investigate. (S1 Ep29)
On the day of a big school swimming competition, all the students come down with a stomach illness, except Sally herself. It is up to her to discover the cause of the illness. (S1 Ep28)
That's Rock'n Roll: A high school rock band, the Fuzzy Frogs, discover that one of their songs has been plagiarised. Sally and Doowee must prove that the song has been illegally copied. (S1 Ep26)
Serial Thief: When the Janitor was a student at school he was accused of stealing a trophy. Now that the trophy has been returned, the Janitor wants the SBI to find out who really stole it. (S1 Ep25)
The Killer Curry: Nigel, the best student in school, is alarmed when his latest report card shows he has failed every subject. Sally and Doowee investigate. (S1 Ep23)
Go Kart Wars: While practising for a go-kart race at school, Mika, the race favourite, loses control of his kart and crashes. Believing it to be sabotage, Mika asks the SBI to investigate. (S1 Ep22)
The Dating Agency: Sally's and Doowee's maths teacher, Miss Smith, has been behaving strangely. When the SBI investigate, they discover that Miss Smith has a crush on a certain someone... (S1 Ep21)