Anne-Lise Rousset lives in the Haute-Savoie with her husband Adrien and Faustin, their 1 year old son. Adrien plans Anne-Lise's training sessions and organizes the preparation of her next objective: to take over the women's record of the GR20, an iconic trail located on the French island of Corsica. Coached by her husband during many months she prepares to be up to the test.