Le jour des bulletins de vote

Albert and the other students are so exhausted by the pace of school. They take refuge in a room that Youcef has found to take a nap.

Noa wonders why Lou never invites him into her home: is she ashamed to introduce him to her parents? In fact, the opposite is true. Lou is ashamed of her parents, because she thinks they're racist.

When Anaïs realizes that Dorian has a sense of self-mockery, she too insistently cracks jokes that soon turns into harassment.

Kayla and Mathis face off in a bet where the loser must change his hairstyle, while Amina struggles with the idea of being seen without make-up after her mother confiscates her equipment.

Jules doesn't like Amanda, the new SVT teacher. He's convinced he's the only student in the class she hates, despite his obvious impartiality. In retaliation for this unproven treatment, he sabotages an SVT experiment.

Because of Louise's stubborn insistence on being addressed by using the term « tu », the school is embarking on an unprecedented experiment: in the mornings, everyone will use the term « tu », while in the afternoons, using « vous » will be compulsory.

Dorian is upset after confessing his feelings to Hippo, while Amina juggles several boys to avoid her own problems. Meanwhile, the 3e class rebels against a personality test imposed by the school, asserting their freedom of choice.

Couret, very uncomfortable with menstrual pads, ends up delegating their distribution to Kayla, who takes advantage of the situation to set up an improper exchange system with the other girls.

Maxime is preoccupied by a compromising photo of him and Lou that could tell Rose everything, and he's desperate to find out who sent it before it's too late.

The poetry competition organized by Marc is made compulsory for all 3rd graders. Anaïs is delighted, but Jules is at rock bottom, unable to write two lines of poetry.

The school organizes a referendum on the installation of a security gate at the entrance, pitting Anaïs, who is actively campaigning for it, against Kayla, who is fiercely against it, while the students' enthusiasm remains mixed.

On the morning of the musical's performance, Dorian is excited because he has to send in a video to apply to London's Royal Musical School, while Lou is panicked that her parents will find out about her love story with Noa because of the TV report.

The students, led by Maxime and Youcef, prepare for the end-of-year party, juggling their emotions between laughter and nostalgia as they face their impending separation.

A new security gate installed at the college raises tensions among the students, between those who support security and those who denounce an authoritarian drift.

The students are getting ready for a teacher-student soccer match, but things are getting complicated.