The film portrays the comic adventures of a group of summertime travellers. Produced at the height of the fascist era, Treno popolare was nonetheless free of propaganda, and featured the first film score by the legendary composer Nino Rota.
The adventures of Count Angelo de Marchis as he tries to reach his besieged allies in Rome with much needed funds from England. Can he evade the pursuing "Contessa Sara Mondini" and her Milanese henchmen?
Called to perform at the Scala, a young baritone begins a transatlantic romance with a famous pianist. The singer, having been skewered by a critic after his last performance in Milan, attempts to find a way to win over the audience and the critics, while wooing his love interest.