Nero struggles to maintain his grip of power. As a result, he promotes his two sons, Commodus and Basillius, to powerful positions, letting them take control of the rebellious province of Britannia. Nero feels threatened by all potential rivals and exacts ruthless retribution against anyone who crosses him.
As the Empire grew more peaceful, many of the senators began elections for reforms to improve the lives of the people. However, Nero felt threatened by this and was manipulated by Aquilo to kill the key senators who were responsible, this included Leontius and the governor of Britannia.
After the death of the governor of Britannia, Nero had his sons replace him, by the advice of Aquilo. However, their brutality had inadvertently caused a full scale rebellion, Nero took little notice of this and cared little when Commodus killed Oswald, that caused the rebellion to start all over again, but on a much larger scale.
Nero was however more concerned with the people who were now against him, and he started a great purge that began to weaken Rome, and making it easier for Boudica, and his rebel allies to attack. While the rebellion was taking place, Nero was meanwhile relaxing watching gladiatorial combat, along with his sons. During a reenactment of Commodus' "heroic" victory, in Britannia, Marius pretending to be a gladiator under the guise "Damocles" became the main star of the show. When Commodus was destined to challenge the gladiator, Nero was greatly concerned as Damocles still looked "alarmingly strong", though he was more concerned with his purse than with his son.
However, despite his son's cheating tactics used by Aquilo, Nero witnessed the shocking scene of Commodus' beheading and "Damocles" swearing that he was next. Nero retreated back to his palace, just when Boudica's rebellion hit Rome. However, as the battle got closer to the palace, Nero was in a state of paranoia and anxiety. He called out from the palace balcony to his soldiers to protect him. One of the generals Marius Titus, having reached the palace doors, Nero immediately met him there and demanded to protect him, but Nero seemed to be more frightened of Damocles than from the attacking barbarians.
When Nero and Marius reached the throne room, Nero opened a secret passage to a secure vault. Marius passes the time by telling his story. But as the story progressed and after the part with the fall of York, Nero deduced that Marius was Damocles. Having nowhere to run he had no choice except to listen to the end of the story. As the story ended to where they were, Nero asked as Marius that if he was not here to protect him, what is he to do now. As Marius lurched towards Nero, Nero reminded Marius of the Oracle's prophecy; "Emperor Nero can only die by his sword" and asking that he give him his sword so that he can die as an Emperor, even if he had lived as one.
But just before Nero could commit the act, he heard the door of the vault being pounded. Remembering that Marius had defeated the barbarians, he deduced that the ones pounding on the door are his Praetorian Guards. Deciding to use the banging as a distraction, Nero opened another door to another part of the palace. Hiding among pillars in a walkway, Nero watched as Marius was confronted by Aquilo who has been aiding Nero and whose stated goal is to cause the collapse of Rome. Nero used this time to mortally wound Marius and get to his now arriving Praetorian Guards.
After Marius had got past the Praetorian Guards with Summer's help, Marius used all his might and rage to throw himself and Nero over the ledge near the statue of Nero. Nero is killed by the sword that the statue was holding, fulfilling the Oracle's prophecy and completing Marius's journey.