In the last days of the summer, a group of teenagers prepare for the police re-enactment of an event that occurred a month earlier. Fatim face more than the others the return of her friend, Helena, who is accused of the case.

Summer 2031, 104°. Saadia, 16, is in mechanical school although the car industry is in crisis and there are only a few electric cars in circulation. Her friends, Charly and Titi, throw a joke to cheer her up: what if the car of the future was a horse? Against all odds, Saadia trades her scooter for a massive workhorse which she brings back to the heart of her housing project.

Because he forgot his identity card, Elias cannot take the entrance exam to Sciences Po. In search of a job while waiting to be able to take the exam again, he becomes an educator in a children's home. Confronted with an environment he doesn't know how to work, Elias doesn't yet know how much this experience will change his life.

Sanou, a bright 15-year-old, enrolls in the famous Henri IV school in Paris. In this prestigious institution, the young girl from the Saint-Denis outer suburbs finds herself dropped into a world a million miles from everything she knows.