Felicity and June follow a mysterious girl in uniform to Miss Grayling’s study, but she runs off. Miss Grayling checks her room, which appears in order - what did the intruder want?

Jo discovers Lily Vernon hiding out in the abandoned cottage and agrees to help her in secret, while Alicia decides Darrell needs to relax and plans their final midnight feast.

Felicity and Jo meet a young acrobat girl and Jo promises to take Felicity to the circus. When Jo breaks the rules to fulfill her promise, Miss Grayling teaches her a lesson about friendship. Twins Ruth and Connie start to notice their differences.

In an attempt to impress her parents, Gwen auditions for the lead role in the upcoming school play. Darrell and Sally devise a plan to save the school.

When Alicia’s birthday gift from her parents doesn’t arrive, she takes it out on her teachers. Gwen becomes more tangled in her lies.

In an attempt to impress Alicia, Darrell unleashes a prank in Mam'zelle's class. Trick sweets sent by Alicia's brothers cause havoc in the school, and strange happenings continue when a mysterious red handprint appears in the dorm.

Ruth lets her sister Connie take credit for her essay. The First Formers try to evade Darrell while searching for treasure.

Clarissa goes undercover to prove that girls can play soccer just as good as boys. Darrell and Susan help Mr Murray look for ancient symbols in the garden as they continue their archaeology research.

After being selected as head of lower school, Darrell soon feels the demands of leadership when Felicity, her younger sister just starting at Malory Towers, gets into trouble.

Darrell enlists the help of the First Form students when facing her first challenge to her authority as head of lower school.

Preparing for the inter-tower lacrosse match leads to disappointment for Darrell and Felicity. The rest of the team speculates why breakout star Clarissa is hesitant to play.

June makes some itching powder for a prank that gets out of hand. Connie blames June for the unfortunate things that keep happening to her, even though June insists she had nothing to do with them.

Alicia's family sends a bounty of food, and the girls are all set to have their first North Tower midnight feast. But when Matron wakes during the feast, all Darrell’s worst fears are realized. Will the girls escape?

A teacher and Gwen are quarantined after finding out they have the measles. Darrell finds out disturbing news about the future of Malory Towers. Sally takes on extra responsibilities.

Gwen goes a little overboard when she organizes a dance lesson with the Thackerton boys. Mary-Lou discovers a mysterious statue in the woods when Gwen asks her to break the rules to gather ivy.

Mrs Heather appears suddenly to take Susan home. The Second Form girls start a prank war with Mam'zelle. Ruth and Clarissa find a way for Susan to stay at Malory Towers.

When Gwen leaves the school to learn about Darrell’s past, Darrell must try to stop her before it's too late. Meanwhile, not knowing where their dormmates are, the North Tower girls do all they can to cover when the Matron comes for lights out.

Ellen is stressed that she’ll lose her scholarship and stays up all night studying for an exam. Gwen gets her hands on Darrell’s diary and discovers Darrell's secret.

Darrell shows a potential investor around Malory Towers. Gwen is confronted with her lies when her mother visits.

Alicia and Darrell pull a sneezing prank on their French teacher, which disappoints Sally. Someone has stolen important possessions from the girls.

Darrell suggests a midnight feast in the stables, but they’re afraid of horse poachers. Mavis, a Sixth Former, is on the hunt for someone to accompany her on the piano for an important audition, and Irene might fit the bill.

Ruth and Connie think they have received a camera for their birthday, but when the Second Formers take a comic photo of Matron, they have to work to retrieve the film.

The girls try to cheer up Celeste, who wants to get expelled so she can go home to see her mother. Mary-Lou finds herself facing a snail invasion when she takes an art class.

In awe of Malory Towers, Darrell keeps her past at her old school a close secret. Always in the thick of it, Darrell has a hairy start at the train station and when odd sounds are heard in the dorm, learns about the ghost of Lady Jane Malory.

After a confrontation with Darrell about her family, Sally is found hiding in pain. However, her injuries are far more serious than first thought. Fearing she is at fault, Darrell leaves the school to find a doctor.