German South West Africa, now Namibia, is where colonial troops killed an estimated three-quarters of the Herero population between 1904 and 1908, driving survivors into the desert or into concentration camps built on African soil. Historian David Olusoga traces how German administrators and scientists treated the killing as a testing ground for racial theory, with skull measurements and camp records that later fed into Nazi ideology. Archival photographs and reconstructions show the camps and the forced marches, while interviews with Herero descendants and reparations campaigners lay out what has never been settled: no formal German apology carrying legal weight, and no compensation. Footage from 2004 captures a German government minister expressing regret at a centenary ceremony, a moment the film treats as gesture rather than resolution. Olusoga connects that unfinished history to present-day Namibia, where farmers of European descent, about 6 percent of the country's 1.8 million people, still hold a large share of commercial land. The film moves between the colonial archive and current land disputes to show one grievance running through both.