This is an invitation to a travel back into time, thanks to the historian from Nantes Armel de Wismes. He shows us unknown or little known sides of Nantes : 40 places, monuments and streets with their great men and little stories in 40 chronological episodes.

A historian, novelist, painter, Armel de Wismes belongs to one of the oldest families in France. His flat is full of extremely rare documents. Taking as an audio-visual aid his own archives which spread over more than eight centuries, this storyteller who brings an ancient oral tradition, reveals with great talent and friendliness all these little joyful anecdotes which made the « Great History ». Something never seen before !