Biel has just received news that has upset him and he decides to propose to his lifelong friends that they spend a few days in his grandparents' town: Santa Cruz de la Serós, in Huesca, coinciding with the main festival. April and Gerard join in, although lately they feel that they have neglected their bond and that they are not the same as always. During their stay in the town, surrounded by nature and impressive landscapes, they will have to face their own monsters, testing their friendship.