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.

On a scorching hot day at Malory Towers, Miss Potts lets the first-form girls go down to the pool. Jealous of Darrell and Alicia's new friendship, Gwen takes the fun and games too far.

Darrell is up to play in the lacrosse game, but her excitement is short lived when she finds out they'll be playing against her old school. Darrell must face her past and overcome her temper if she wants to win the match.

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?

On open day, Malory Towers bursts with energy and visiting families. But Darrell's joy is short-lived when she finds out her half-term results. She is determined to keep them a secret from her parents.

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.

Darrell is itching to get to the bottom of Sally's relationship with her family, but when Sally goes missing, the first form rallies together to comb the grounds. Darrell and Sally finally discover the real reason Sally was sent to Malory Towers.

A beautiful dress arrives at Malory Towers: one of the girls is a debutante, destined to marry into aristocracy. When Darrell finds out who the mystery girl is, she's determined to prove the girl is a poor choice.

Feeling guilty for lashing out at Mary-Lou, Darrell and Sally hatch a plan to give Mary-Lou the confidence she needs. But will the plan backfire and make Mary-Lou less courageous?

In the dead of night Mary-Lou faints when she sees a hooded figure in the dorm bathroom. Not wanting Mary-Lou's courage to be crushed, Darrell and Sally are determined to get to the bottom of the mystery.

May-Lou is devastated to find her courage pen smashed on the floor. When Darrell's shoes are found with ink on them, Darrell is the prime suspect, and the North Tower holds a class court.

Darrell’s final year starts with a fierce argument with Gwen, but she knows they need to work together. French student Celeste joins the Third and plays a prank on the teachers.

Alicia falls out with Darrell and the other sixth formers when she edits the school newsletter. Jo and Susan get into trouble with Mr Parker over his new typewriter.

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.

Irene offers to help Ron with his band, who are playing that afternoon, forgetting she has to take an important music exam. Felicity and June find clues to the missing time capsule.

Angry about not receiving a present from Paris, Celeste hides in the stables. However, she is trapped there with Matron when the stables catch fire.

Celeste lies that she started the fire on purpose to be sent home. Sally confronts Matron about her eyesight, and Miss Grayling finally tells Celeste the truth about her mother.

When Felicity and Darrell debate whether the Third should have the same freedoms as the Sixth, the sisters end up in a personal argument. Gwen’s attempt at matronly duties ends in chaos.

Matron arrives with Nancy, her young ward, and Gwen tells her to ask Matron to stay, which annoys Matron. Nancy joins the third formers as they search for the missing time capsule.

Jo causes chaos when she tells Celeste's mother that Celeste doesn't want to return home. Nancy, June and Felicity are excited to discover that Fred knows about the time capsule.

Alicia and Darrell are trapped in the cellar after Alicia receives some bad news. Can finding the time capsule help them? Irene feels pressured by her musical ambitions.

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.

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.

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.

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.