Olympics: the incredible story of Jules Dubois, Olympic medalist without knowing it. Didier Desplanques receives an email that is almost worth gold and will enrich the family saga.

An amateur historian tells him that his great-great-grandfather won a silver medal in the sailing event at the Paris Olympic Games in 1900. This long-forgotten past was brought to light by Stéphane Gachet, a sort of Sherlock Holmes of the black and white Olympics.