The lawyer Pio has the personality of an earthworm. The priest assigns him, as a driver, the rather prejudiced Amedeo, rough manners and unlikely clothes. The second will wake up the first.
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.