Heinrich Himmler dispatched SS agents across Europe to hunt down a single manuscript: Germania, a nearly two-thousand-year-old text by the Roman historian Tacitus describing the tribes beyond the empire's northern frontier. Nazi ideologues seized on it as proof of a pure, ancient German bloodline, turning a minor classical work into what they called the "birth certificate" of the Aryan race. This episode of Myth Hunters traces how that reading came about, following the manuscript's journey through medieval monasteries and Renaissance libraries to its rediscovery and its recruitment into SS propaganda. Historians examine what Tacitus actually wrote, how selectively the Nazis translated it, and why Himmler considered the surviving copies important enough to search for at any cost. The film moves between library archives, expert interviews, and the historical record of the SS's obsessive pursuit, building a picture of how a Roman text about a distant frontier got refashioned into a founding myth for genocide.