Paris, 1884. The lives of three orphaned children wandering the streets dominated by ruthless criminals change tragically when they carry out a daring robbery.
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 discover a breathtakingly beautiful world of ice. The idea that this glacier could disappear is unbearable for them. Trained by Alain, the students throw themselves body and soul into a crazy project: to prevent the glacier from melting and nothing can stop them!
On the night their favorite bar closes, Eden, Crystal, and Ibtissame, three young black and arab queer girls, experience strange events: Crystal mysteriously disappears, kidnapped by a purple star. Eden starts looking for the one she loves, until she discovers that Crystal is trapped in another fantastic and strange world...
