On a public holiday, the village square hosts a little travelling fair and cinema tent. Among the locals introduced is François, the amiable and bumbling mailman, who everybody likes but nobody takes seriously. Marcel and Roger, the two men running the fair, make him their butt and get him drunk. In the cinema tent, people watch a spoof documentary about the unbelievable efficiency of the US postal service, comparing it with antiquated French methods. They decide that François must get up to date and, although he only has a bicycle, must start using transatlantic dash in his delivery. In the end, exhausted by his frantic efforts, he stops to help a family pitchfork their new-mown hay into a horse-drawn cart.