Valerian writes his uncle, colonial millionaire, for money. He meets a quartermaster, Napoleon, who pretends to be a doctor of law. They become friends.
Sûr de son charme, un soldat en garnison parie avec ses camarades qu'il est capable de séduire la première femme qui passe, avant les grandes manœuvres. Il met son plan en œuvre et tombe amoureux de la jeune modiste choisie au hasard.
Reconstruction of Bernadette Soubirous's life (1844-1879), a 14-year-old girl that catholics believe had eighteen visions of Mary, the Mother of Jesus, in a grotto near Lourdes, France. The place became a peregrination centre since then.