Vespasian carries out military service on the outskirts of the great empire, in Cyrenaica, on the territory of modern Libya, planting the Roman order there. However, political events in the capital - court intrigues, Tiberius's madness and chronic shortage of grain - force him to leave the lands of sweltering Africa and return to the Eternal City. When Caligula becomes the new emperor, Vespasian hopes that Tiberius' brutal rule has come to an end and Rome will now heal in a new way. However, his hopes are not destined to come true .. Caligula from a promising serious ruler turns into a mad tyrant, bloodthirsty and lustful. Demanding respect for himself as the god-emperor, Caligula gives Vespasian a deadly task - to go to Egypt, to Alexandria, and bring the cuirass of Alexander the Great, kidnapping her from the mausoleum of the great commander ..