In 1916, when a Mexican rebel steals cannons from the American army, General Pershing sends out a group of misfits to retrieve the stolen weapons.

Follows Michael Corleone, now in his 60s, as he seeks to free his family from crime and find a suitable successor to his empire.

In 1929, Italian Fascist dictator Benito Mussolini appoints General Rodolfo Graziani as colonial governor to Italian Libya with orders to stamp-out all resistance from Libyan nationalists led by rebel guerrilla leader Omar Mukhtar.