Season one begins in 52 B.C. as Gaius Julius Caesar completes his quest of Gaul after eight years of war and prepares to return with his army to Rome. But while Caesar’s self-interested niece Atia and long-lost paramour Servilia anxiously await his return, the ruling patricians despair that Caesar’s homecoming will disrupt the status quo. As Caesar’s legions move closer to Rome, allegiances are put to the test for both soldiers and civilians — and the escalating tensions climax with a full-scale conflict destined to change history.