Kingdom of France, late thirteenth century. The Templar Foulques, back from the crusade, is given the task of escorting Theobald, a sodomite knight, to the city where he must be judged and punished. Accompanied by three mercenaries, the heretic and the soldier of God are engaged in an arid and burning scrubland.

A doctor on a French military base in Afghanistan, Nadia, in her thirties, works for the coalition of major Western powers. When she is sent on a mission to a village in a strategic location, her convoy falls into an ambush. Nadia and a soldier of Tajik origin are captured by a group of Taliban led by Abdullah, a Pakistani. The soldier is beheaded, while Nadia is miraculously released thanks to the intervention of a Pashtun leader, Hassan Walli, whom she had met ten years earlier in Paris. Using this friendship, Colonel Leroy of the DGSE asks the young woman to get closer to Hassan, who is seen as a moderate opposed to Al-Qaeda…