1920. Georges Clémenceau just lost the french presidential elections to the unknown Paul Deschanel, an idealistic who wants to change the country. But, one day, Deschanel falls from a train and disappear. At daybreak, France is looking for its president, a great chance for the « Tiger » Georges Clémenceau.

A crossing guard has known too many misfortunes in his life to believe he is facing the on-the-run President of the Republic.