Vercingetorix, Gaul’s hero

The Gauls are gathered around the betrothal table. The chieftain's daughter enters and presents the cup to Vercingetorix, whom she has chosen as her husband. The rival, in his anger, challenges the chosen one to a duel. Vercingetorix disarms him but spares his life. The traitor offers his services to Caesar, who is leading his armies into Alesia.