Robert McCall finds himself at home in Southern Italy but he discovers his friends are under the control of local crime bosses. As events turn deadly, McCall knows what he has to do: become his friends' protector by taking on the mafia.

Italy, 2035. Mansfield, Stendhal and Buzzati are friends and partisans fighting against the regime. Engaged in relays of coded messages hidden in ciphered books, they are forced into a race against time: the fascists are about to take the town of Ovada.