From the campaign:
It is the year 193 AD. The Roman Empire is not as great as it once was. Enemies are crossing the borders while famine and political intrigues are tearing the empire apart from within. The previous emperor was killed by his Praetorian bodyguard and has left a vacuum that the powerful families in Rome are trying to fill. Are you ready to don the purple yourself and be the new emperor? If you fail, the other families are ready to take over at a moment's notice. While they wait for your doom, they will backstab and undermine you as much as they can. However you all have to work together as the fall of the Roman Empire is closing in.
The campaign is closing in quickly on its goal with still 28 days left to go.