Terry arrives at a new school in Pisa, where Claudio and the popular kids welcome her. But the good vibes might not last until her birthday.

As the feud between Insiders and Outsiders heats up, Marzia's new app triggers some strong emotions. Dario confides in a mysterious girl.

New students arrive unexpectedly, prompting big changes. Sabrina and Terry are forced to perform together. Claudio won't let The Outsiders play soccer.

Trouble at home spills over for Claudio as rumors spread at school. The Insiders take revenge on Terry. Alessio worries about the class trip to Venice.

The headmistress divides Montalcini with a huge wall. An old friend calls to give Terry courage, and Claudio asks her to help with a bold new prank.

The Insiders' band prepares for a big performance. Paolo tries to help Alessio with the school trip. Luca wants to tell his crush how he feels.

After discovering the identity of Dragonfly, Dario struggles with his feelings. Alessio comforts Luca. Claudio and Terry attempt a truce.

The school trip to Venice gets off to a bad start, but soon no one in class 3D can resist the city's romantic charm — not even the most bitter rivals.

As Alessio and Luca fix their friendship, the twins can't stop fighting. Paolo tries to text Inés. Claudio feels the pressure of a decisive soccer match.

The ingenious Wally strikes again, setting the school abuzz. Sabrina and Terry struggle with their crushes. Marzia wants to confess her feelings.

Terry is tired of the division between Insiders and Outsiders. Claudio feels betrayed by his father. The headmistress cracks down with stricter rules.

Everyone is mad at Terry, so she runs back to Rome and finds that nothing is the same. Dario and Luca confront their father about a shocking discovery.

On the eve of the Bridge Cup playoff, the headmistress forces Wally to confess. Claudio and Terry get devastating news, and the gang unites to help them.

Terry calls in reinforcements, clashing with Claudio again — but Insiders and Outsiders must stick together like never before to tear down the wall.

A comic book competition brings Alessio, Terry, Claudio, and Paolo to Toulouse, but an anonymous letter pushes them into a quest that will unite them more than ever.