At the Paulistano Club pool, Lygia tells Nilo that she liked the album "Lua Branca," recorded by the young man. He promises to visit her to perform the song in person. The visit marks the beginning of a romance between the two, which later becomes an engagement. However, Nilo is involved in the 1924 uprising in the barracks and, with the outbreak of the revolution, leaves for the front. The city of São Paulo shows the damage caused by the bombings. The rebels, wanting to avoid further sacrifices to the city, after days of fighting and victory, decide to abandon it.