Plot synopsis: Lou, a 12-year-old goat, lives with her brother Koa and her mother Zoé, a storyteller, in a mountain hamlet. During the autumn migration, a storm sweeps Zoé away. Determined to find her, Lou ventures alone into the snowy heights, where she bonds with a mysterious creature who reveals the mountains secrets and the world of Spirits to her. This journey of initiation unveils Lou as the new storyteller, ready to carry on her mother's traditions and those of her community.