More than two decades after the events of Gladiator, Lucius—the son of Lucilla and Maximus[4]—lives with his wife in Numidia. Roman soldiers led by General Marcus Acacius invade, killing his wife and forcing Lucius into slavery. Inspired by Maximus, Lucius resolves to fight as a gladiator under the teaching of Macrinus, a former slave who plots to overthrow the young emperors Caracalla and Geta.