This programme examines the case of the Allied bankers who continued their business dealings with the Nazis during World War Two. The US Secretary of the Treasury, Henry Morgenthau, began investigating Nazi finances 60 years ago and found Allied banks, including many British and American high street names, who continued to do business with Hitler's Germany throughout the war. When Pres. Roosevelt died in April 1945, Morganthau lost his protector and his crusade against the banks came to an end. This incredible story contains interviews with surviving members of banking families and Morgenthau's investigative team as well as newly found archive material.