Cosdian (Jean-Paul Jean-Paul Rouve) is an ornithologist whose love of ornithology has made him devote his whole life to this field. The white-fronted geese, who had lost their parents, were unable to learn the skills of migration, so Cosdean decided to navigate the chicks from Norway to their destination France. However, when he applied for funding from the Paris Museum, Cosdian was rejected. Thomas (Luz Vazquez Louis Vazquez) comes to his father's farmhouse for a holiday. At first, the boy doesn't understand why Cosdean is always so concerned about birds, but as time goes on, Thomas is gradually attracted to magical birds. One day, Costien was shocked to find that Thomas was secretly piloting a light voyage to guide the migration of birds.