Rome, period of the early Empire. The prefect of the Praetorian Guard, Cato, and his friend, the centurion Macro, returned victorious from Britain. But their souls are not happy - having given birth to a son, the prefect’s beautiful wife died, who, as it now turns out, cheated on her husband during her lifetime and incurred debts that were unaffordable for a soldier. However, this time Rome will not know what Cato is like in anger: he, without even having time to rest a little, is sent to Spain to suppress a slave uprising. Maybe at least this will distract the prefect from his rage and gloomy thoughts... It was not so: the Spanish expedition was led by the cruel intriguer Senator Vitellius, and he clearly gathers all his main enemies “under the eagles” far from Rome for a reason...