At the close of the Gallic Wars, Gaius Julius Caesar finds his army encircled by a massive force of Gauls but wins a decisive victory with a brilliant counterattack at the Battle of Alesia. An inspiring speech to his troops, promising to rescue Rome from its corrupt rulers and restore it to its people, raises opposition from Senators Cato and Marcellus. Caesar refuses to disband his army before crossing the Rubicon, plunging the Republic into civil war and turning his deputy Labienus and old friend Pompey against him. Caesar captures Rome unopposed after Pompey is forced to withdraw his vastly outnumbered legions and the senators and people flee. Caesar seizes the emergency funds from the treasury to fund his campaign, but, failing to pay off his soldiers, is later forced to decimate his own rebellious Ninth Legion. Pompey amasses a huge army in Greece while Caesar leads a one-year campaign against opposition in Spain. In Greece, Caesar is forced to retreat inland by Pompey at the Battle of Dyrrachium but is victorious when the Senators force Pompey into an impetuous attack at the Battle of Pharsalus. Caesar overturns the Republic and has himself made dictator for life (essentially the first emperor), only to be assassinated by rivals just four years into his rule.
Elenco: David Threlfall , Sean Pertwee , Catherine McCormack , Michael Sheen .