This companion documentary delves into the real-life origins of the oil boom in the Lüneburg Heath. Actor Aaron Hilmer from the series "Black Gold" travels to Wietze in search of historical traces. Once a hub of the German oil industry, the town in the Celle district served as the real-world inspiration for the fictional series. In 1858, geologist Georg Hunäus drilled Germany’s first oil well here. By the early 20th century, oil derricks crowded the landscape of Wietze. Through conversations with historians and contemporary witnesses, Aaron Hilmer explores how the oil boom transformed this small village on the heath.