Alain, a former mountain guide, decides to change his life and become a teacher. He finds himself faced with colorful ninth graders who are not interested in anything. Seeking to motivate them and bring them together, Alain decides to organize an outing... in the bowels of a glacier. The students...
Despite a life surrounded by mystery, Emy tries at all costs to protect Gaëlle from certain realities concerning her, while Bastien struggles to remain in the mold imposed by his father, under the loving but powerless gaze of Louis.
