"Once upon a time ... the Americas" tells us the story of this vast continent, from the very first inhabitants to the present day, including the Aztecs and the Incas, the conquistadors, the war of independence or the gold Rush. Through our usual sympathetic heroes (Maestro, Pierrot, Petit Gros, le Teigneux, le Nabot, etc.), we travel from time to time, always with the aim of teaching us something.