It's the last day of school and Miss Grayling is to sign away Malory Towers forever! Will Darrell and Sally's dramatic discovery save the school?

Gwen attempts to get rid of the stolen items she has gathered, but in the process puts Mary-Lou in mortal danger! 

The local boys school play Malory Towers in an inter-school quiz. Ellen's reputation is under threat when Darrell catches her sneaking around in the middle of the night! 

Gwen resorts to drastic measures to hide her stolen bounty, whilst Darrell and Sally make a discovery that could lead them to Lady Jane's treasure!

Tensions come to a head between Darrell, Alicia and Sally when a sneezing trick is played on Mam'zelle. Meanwhile, Gwen is alarmed when Matron announces a trunk inspection! 

Whilst trapped in the sanatorium, Gwen overhears news that threatens the existence of Malory Towers! Sally is left by Mam'zelle to take a lesson, but Alicia proves to be a tricky pupil.

It's the day of the play and Miss Grayling invites a potential investor to the school. In a bid to impress him, Darrell is tasked to lead a tour - but all doesn't quite go to plan!

An anxious and upset Ellen disappears following a class test. The girls must search the school to find her! Meanwhile, Gwen is determined to get her hands on Darrell's diary. 

Alicia causes a stir in the classroom when one of her prank goes horribly wrong! Whilst Gwen's lie about her father's health starts to spiral out of control. 

Gwen auditions for the lead role in the upcoming school play. But it doesn't go as well as she hoped! Meanwhile, Darrell and Sally try to work on a plan to save the school. 

The girls arrange a special surprise for Ellen, but it soon backfires! Meanwhile, Darrell uncovers information that threatens the future of Malory Towers! 

Tensions increase between Alicia and Sally, when Alicia convinces Darrell to play a prank with invisible chalk! To try and restore order Mr. Parker introduces the dunce's cap... 

Darrell and the gang are back! The first job of the term is to appoint a new Head of Form; with Alicia, Sally and Gwen in the running, who will the girls choose to lead them?