There was a TV movie about this staring Rutger Hauer, I thought it wasn't bad.
It was set in the 60's they had the US and Germany as the two superpowers in cold war instead of the USSR. Joseph P. Kennedy was president, and Hitler was already getting old. The US had won the war against Japan, and Germany was still fighting a 20 year guerilla war with the Russians but they controlled most of the country.
The new Europe under the Nazi's was showed as pretty bleak, total uniformity every where including clothing, SS markings and Nazi symbols over everything. No a very good world to live in, Gestapo everywhere.