大將軍一夕之間成為奴隸，被訓練為競技場鬥士，他在競技場上對抗羅馬帝國" 羅馬帝國大將軍麥柯希穆（羅素克羅飾）率兵出征，所向皆捷，凱旋而歸。在外征戰三年的麥柯希穆，一心只想返家與家人團聚，皇帝病危召見，想把王位傳給他，皇儲康莫德斯見到此景，憤而暗中派人抄了麥柯希穆的家。 老皇帝駕崩，康莫德斯登基，死裡逃生的麥柯希穆成為一名奴隸，被訓練成為競技場上的鬥士。麥柯希穆曾經為了羅馬帝國的光輝榮耀而戰，如今競技場成為他的戰場，他征戰的目的改變了，他在競技場上勇猛搏鬥，為了製造機會接近康莫德斯，替妻兒報仇。然而所向無敵的麥柯希穆竟然成了人民心目中的英雄，受百姓崇拜，他所凝聚的氣勢，點燃了羅馬帝國滅亡的導火線。

It is the word "horde" that had meant, for many countries and nations, bloody raids and being under humilating contribution for centuries - a strange and scary world with its own rules and customs. To be or not to be for Rus (Ruthenia), that is the price of the one-man mission as he is departing to this world to accomplish a feat. The film tells the story of how Saint Alexius, the Metropolitan of Moscow and Wonderworker of All Russia, healed the Tatar Queen Taidula, Jani-Beg's mother, from blindness, in 1357.

Constantine is fighting against Barbarians with his father when he is called to Rome. In his way to Rome, he falls in an ambush planned by Maxence, who wants to become emperor.