While the school prepares for Mam'zelle and Mr Edwards's wedding, Darrell and June find themselves in grave danger when they uncover new information about the Cruel Captain. 

Unaware that Ruth is behind the mean tricks, Connie points the finger at another girl in the dorm. Can Ruth do the right thing and honestly confront her twin? 

Darrell is determined to ace the school cert, but her focus soon shifts when a WWII grenade is found in the San and Felicity and June can't be found. 

Felicity and June prove to be a handful when Darrell supervises the class field trip. Meanwhile, Gwen gets more than she bargained for when left with Mr Parker's pregnant wife. 

Clarissa is on a mission to say goodbye to her pony, but clashes with his menacing new owner. Meanwhile, Irene is faced with a wedding music dilemma. 

The classroom descends into chaos when June gets her hands on itching powder, but the fun ends when Connie becomes the victim of mean tricks.

Darrell is under pressure to write a speech for the school Open Day, while Sally organises an unusual replacement team for the lacrosse match.
 

When Felicity and June accidentally smash a window during tennis; they uncover an astonishing secret! Meanwhile, Alicia organises a midnight feast in the garden.

Gwen enlists Mary-Lou's help to write a love letter to her new beau at Thackerton College, but when Mary-Lou gets in a muddle, it leads to a surprising romance.

Susan realises something is amiss with the twins when the new girls embark on their first midnight outing!

Gwen learns Clarissa has been keeping a big secret after she falls ill during a lacrosse game. Meanwhile, Irene hears that her father has a new love interest.

Felicity and June learn about possible treasure at Malory Towers, while Darrell's leadership skills are put to the test organising a welcome party for the wayward First Formers.

Darrell is excited to welcome her younger sister to Malory Towers, but when Felicity befriends Alicia's mischievous cousin, Darrell's infamous temper threatens to erupt.