Forensic archeologist Caroline Sturdy Colls has been granted unprecedented access to excavate one of history's greatest crime scenes: Hitler's secret extermination camp in the Polish village of Treblinka. Here, between 1942 and 1943, 900,000 Jews were sent to their deaths, but for 70 years, all evidence of the camp and its victims had vanished... until now. Follow the quest to unearth the processing rooms, gas chambers, and mass graves Hitler tried to erase from existence and journey into the dark heart of the Nazi's Final Solution.