When Alex Heffernen died they thought that their time on earth was finished but little would they know that in reality they were to be reincarnated in the past, the Roman past back when the Emporer could Conqueror anything they licked and the west had only just fallen but with the Persians the the East and Visigoths to the west Roman is truly surrounded not to mention the fact that Rome the entirnal city herself is not even in the Empires Control. If you wish to learn more about the fascinating era in which the takes place I would recommend reading on.