It sounds like the bizzare script of a Hollywood B-movie. In a parallel universe the Nazis have won the war, Adolf Hitler moves to LA where he mingles with the stars of the silver screen while running his evil empire from a luxurious ranch deep in the LA hills. But during the 1930s, American sympathisers were so confident this exact scenario was actually going happen they spent millions building a deluxe compound ready for their fuhrer's imminent arrival.