From the Atlantic to the Black Sea, Mathias and Philippe, two old friends, embark on a bicycle journey that Mathias’s son made before his tragic death. The two men ride through the ordeals with tenderness, humor and emotion.

Sophie is a brilliant student. Encouraged by her maths teacher, she leaves the family farm to attend a science preparatory class. Between new encounters, successes and failures, and faced with fierce competition, Sophie realizes that her dream of joining the Polytechnique represents more than an entrance examination but a true challenge of social climbing.