In 1957, the Battle of Algiers intensifies. Hassan, a peaceful resident of the Casbah, is mistakenly identified as a dangerous "terrorist leader," earning him the nickname "Hassan Terro." He is arrested, but the French occupation army secretly organizes his escape in the hope of tracking down the leaders of the resistance. In turn, the Algerian liberation army exploits Hassan's naivety to thwart the French military command and disperse its forces.