In this episode, Bettany Hughes travels to Bulgaria. In Varna on the Black Sea she sees a 6,000-year-old gold treasure and presents the life of people in one of Europe's earliest civilizations. In the Valley of the Thracian Kings, she marvels at exceptionally lively paintings in a 2,300-year-old tomb. She also witnesses a fire ritual in the village of Kosti and sees how the Pomaks paint their brides.