When the French government discloses that a terrorist attack is imminent somewhere in their country, the secret service captain Nathalie is assigned to carry out a counter-terrorism operation. She decides to infiltrate an unknown man in a mosque, but not a trained undercover agent. She goes to the prison in Dunkirk and selects the computer technician Léon to be trained and work for her. In return, he would be released in the end of his mission. Léon gets close to the Pakistani terrorist Bilal, a dangerous and skilled man trained by the French government many years ago, trying to discover his target. Meanwhile, the Pakistan government blackmails the French minister in the question of Cashmere, and Nathalie covers Léon against a betrayal.