A romanced story of Attila the Hun (Gerard Butler), from when he lost his parents in childhood until his death. Attila is disclosed as a great leader, strategist, and lover and the movie shows his respect to the great Roman strategist General Flavius Aetius (Powers Boothe), his loves and passions, the gossips, intrigues, and betrayals in Rome, all of these feelings evolved by magic and mysticism.
During the waning days of the Roman Empire, the barbarian Huns are making their way toward Europe. A warrior named Attila (Gerard Butler) violently assumes Hun leadership and unites the warring clans under his banner. But this is not enough for him, Attila seeks to form an empire, and he sees Rome, bristling under the leadership of the incompetent Caesar Valentinian (Reg Rogers), ripe for the picking. In an attempt to quell a Hun invasion, ambitious Roman General Flavius Aetius (Powers Boothe) attempts to form an alliance with Attila against their mutual enemy, Visigoth King Theodoric (Liam Cunningham). But this plan backfires, and it soon becomes clear that a violent showdown between all three armies awaits