Ça se passe là-haut, dans les Alpes. Ça se passe là où la neige est immaculée, là où les chamois coursent les marmottes, là où les sommets tutoient les nuages. Ça se passe dans un village paisible jusqu'à l'arrivée des Allemands. C'est la rencontre d'un enfant solitaire et d'un chien sauvage. C'est l'histoire de Sébastien qui apprivoise Belle. C'est l'aventure d'une amitié indéfectible. C'est le récit extraordinaire d'un enfant débrouillard et attendrissant au coeur de la Seconde Guerre Mondiale. C'est l'odyssée d'un petit garçon à la recherche de sa mère, d'un vieil homme à la recherche de son passé, d'un résistant à la recherche de l'amour, d'une jeune femme en quête d'aventures, d'un lieutenant allemand à la recherche du pardon. C'est la vie de Belle et Sébastien...

It happens up there, in the Alps. It happens where snow is spotless, where chamoises chase marmots, where summits scrap the sky. It happens in a peaceful village until Nazi's arrival. This is a meeting between a lonely child and a savage dog. This is the story of Sebastian who tame Belle. This is the adventure of a indestructible friendship. This is the extraordinary narrative of a resourceful and touching child during the Second World War. This is the odyssey of a little boy looking for his mother, of an old man looking for his past, of a resistant looking for love, of a young woman looking for adventure, of a German lieutenant looking for forgiveness. This is the life of Belle and Sebastien...

Son père venant tout juste de décéder en mer, le jeune Nicolas a bien l'intention de passer l'été au terrain de baseball de son petit village avec ses amis. Sauf qu'au premier jour des vacances, scandale! Le terrain a été cadenassé et est jonché de déchets, car la mairesse du village souhaite s'en servir comme dépotoir. Nicolas et ses amis doivent donc tout nettoyer afin de pouvoir pratiquer leur sport favori. Nicolas demande à son grand-père, un ivrogne reclus depuis la mort de son fils, de les aider. Pour convaincre la mairesse, ils devront remplir les gradins et organiser une vraie partie de baseball.

Nicolas, Nicky to his friends, lives in a small, quiet town overlooking the ocean. Son and grandson of fishermen, he is twelve years old and lives alone with his mother and his older sister. A terrible storm snatched his dad a few years earlier. Nicolas is in double mourning: for disappearance of his father and for the disintegration of his grandfather. Unable to bear the death of his son, Jeremiah Boudreau sank into depression and alcohol, burning bridges to family and friends, even while trying, awkwardly, to keep in touch with grandson. Summer vacation has just begun, and for Nicolas, it is the occasion to resume his greatest pleasure: playing baseball with his friends. But a major obstacle greets the boys and girls who assemble at the village baseball field: the town council has decided to convert the field into a municipal dump. War breaks out. With Nicky as their leader, the village kids will resist the mayor's stealthy machinations with ferocity and humour. And, to their surprise, they will receive the ingenious support of Jeremiah Boudreau and his old buddies. That eventful summer, Nicolas will learn the hard lessons of leadership and he will end up reconciling with his grandfather.