The story is set at the beginning of the 20th century in Sicily. Salvatore, a very poor farmer, and a widower, decides to emigrate to the US with all his family, including his old mother. Before they embark, they meet Lucy. She is supposed to be a British lady and wants to come back to the States. Lucy, or Luce as Salvatore calls her, for unknown reasons wants to marry someone before to arrive to Ellis Island in New York. Salvatore accepts the proposal. Once they arrive in Ellis Island they spend the quarantine period trying to pass the examinations to be admitted to the States. Tests are not so simple for poor farmers coming from Sicily. Their destiny is in the hands of the custom officers.
It's Christmas Eve in Naples. Little Rocco feels increasingly jealous due to the imminent birth of a baby brother. Three bungling devils sent by Satan promise him that if he'll stop Jesus from being born—entering the Nativity scene his father built by the magic word "opopomoz" and altering the past—his brother won't be born either.
Momo is a shy and affectionate girl who has found new friends and a house in the middle of some ruins of an old amphitheater. But suddenly, a day, the "Grey Men" burst in the city in order to rob people's time. Momo try to stop them but doesn't know how.
