The pressure is on for Gwen when Felicity suddenly gets stage fright. Meanwhile, Ruth and Susan’s hard work comes to fruition when they make an amazing discovery.

Felicity struggles to get out of Darrell's shadow in her second year at Malory Towers. Newcomer Jo struggles to follow the rules, getting Felicity caught in the crosshairs. Mary Lou debates how strict to be after becoming head of lower school.

On the day of the big race, Felicity cracks under the pressure of Alicia's tough coaching. Matron goes on vacation to see her family. The new nurse, Nurse Jane, has her hands full right away when Darrell gets injured looking for Felicity.

With the third form on a trip to the circus, Darrell and Sally attempt to recover the confiscated peaches from Miss Johnson’s office, but they find more than they expected...

Ron shows Darrell and Sally a stash of art found in the stables, but where did it come from? Miss Johnson is caught off-guard when Miss Grayling arrives back at 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?

June and Darrell find themselves in danger when they leave the school to continue the search for the treasure in a cave during high tide. The rest of the school prepares for the wedding. Irene is given an important task by her father.

Bill will stop at nothing when she discovers that her horse Thunder is sick with colic. Gwen is charged with keeping Bill away from the stables or else they will both be punished.

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.

Miss Grayling reveals disheartening news. In one last attempt to save the school, Darrell and Sally try to find Lady Jane’s lost treasure. Gwen’s secrets come to light.

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.

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.

Alicia convinces Darrell to help her play a prank on their teachers with invisible chalk. Meanwhile, Mr. Parker becomes stricter with his teaching. Mary-Lou finds her voice and stands up for herself.

The girls attempt to make Ellen feel more included but their efforts backfire. Miss Grayling has a secret that might put Malory Towers in danger.

Gwen resorts to drastic measures to hide what she’s stolen. Darrell and Sally find a clue that could finally lead them to Lady Jane Malory’s treasure.

Darrell scouts out players for the lacrosse team, and discovers that Gwen has some hidden talents. Mary-Lou discovers a skin condition that worries her. Matron must fill in for the biology teacher.

Miss Johnson enforces a list of tough new rules which get the better Darrell’s temper. An important lacrosse match is at stake when Darrell is given a particularly difficult punishment.

Darrell’s sister Felicity visits to take an exam that will determine her acceptance at Malory Towers. Darrell wants to enjoy time with her sister but Miss Johnson's strict rules stand in the way.

With Darrell focused on clearing Ron’s name, Mary-Lou and Ellen uncover new information that changes everything they thought about the art thefts.

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.

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.

Malory Towers competes with the local boys' school in a competition. Ellen suffers a panic attack when she is accused of Gwen's misdeeds.

Sally returns to a very different Malory Towers after her case of the mumps. The strict new rules keep Mavis and Irene from their audition, but the girls have a plan to cover for them and keep Miss Johnson at bay.

Alicia sends a package for the girls filled with goodies and prank materials, plus a secret message. Darrell prepares for the lacrosse trial and sneaks in practice time.