September 9, 1943, the Corsican resistance without any external support launches the insurrection against the Italian occupier but the game is far from won. On site 80,000 SS soldiers, they will be joined by more than 30,000 other soldiers of the Wehrmacht who have only one idea in mind: to decimate the resistance. The Corsicans fight alone at first, then are reinforced by French troops from Africa. The fighting will last a month, a merciless month. On October 4, 1943, Corsica will be "the first piece of France to be liberated". How were the Corsican patriots able to achieve such a feat? Here is the true story of this little-known episode of the Second World War.