After the death of Emperor Marcus Aurelius, his devious son takes power and demotes Maximus, one of Rome's most capable generals who Marcus preferred. Eventually, Maximus is forced to become a gladiator and battle to the death against other men for the amusement of paying audiences.

In the year 180 A.D. Germanic tribes are about to invade the Roman empire from the north. In the midst of this crisis ailing emperor Marcus Aurelius has to make a decision about his successor between his son Commodus, who is obsessed by power, and the loyal general Gaius Livius.

Rome, under Commodus: intrigue, fight for power, gladiators, senators, Christians, Barbarians, slaves, Pretorians, battles, wrestles, swords and muscles in by-the-numbers Italian epic.