Barbara is aware that she is making all sorts of mistakes, but she counts Domenico as being outside her "diary of errors." All this is expressed in a song she sings.

Matteo and other friends show up at Barbara's house, but she hasn't returned yet, so they talk a bit with her mother about the concert without revealing what happened to her daughter. Barbara doesn't take the visit well and asks her friends to leave.

Maestro Fiore has arrived and introduces himself to the orchestra students. He says he is just like them and wants to feel their music and their energy.

After being kicked out of Marioni's class, Matteo returns home, where his uncle is waiting to introduce him to Lorenzo. Matteo goes out with Domenico, who tells him some things about Marioni. Meanwhile, something has happened in the group chat.

The JAMS meet at the park and have to decide who will take the trophy home. Alice and Max, with an excuse, leave Joy and Stefano alone.

Matteo is about to leave the rehearsal after his argument with Marioni. Irene is there in the auditorium, having learned about the warning to Marioni, and wants to be there for him. He asks her to stick around.

And finally Borghese announces the verdict. Which team will be the winner? JAMS or The Best?

Matteo stays to play his solo for Marioni, who makes him play without looking at the music. Outside, the others in his group discuss how long they think he will endure Marioni's harsh treatment.

Chef Borghese tastes and carefully evaluates the main courses and goes on to the desserts, where he runs into some surprises. It is a very close race!

Sara offers to walk Chiara home, and the two have a conversation about how it feels to be visually impaired. At the rehearsal, Marioni expresses his frustration with orchestra's lack of passion in their playing and discusses the significance of performing the Unfinished Symphony.

Chef Borghese begins to judge the dishes of the two teams, JAMS and The Best. It's a close contest and the kids are very nervous.

Marioni is summoned by the principal because he received a warning from Giacomo's parents who hold him responsible for what happened to their son. During rehearsals, the maestro discovers someone who shouldn't be in the hall.

The JAMS arrive at school in a rush, where the awards ceremony is already underway. Chef Borghese has just awarded the trophy but asks the winners if they would rather win by challenging the JAMS. Oscar, as captain, decides to continue the competition and they begin.

The JAMS are a group of four and without Joy the finales make no sense. Alice, Stefano, and Max go to visit Joy to show her just how important their friendship is and to let her taste the cake they made.

Matteo meets Sofia to whom he confesses being excited about the concert. At Sara's house, Gigi plays for her parents the song he composed for her. Robbo and Chiara unfortunately witness an argument between their parents.