These territories are separated by a neutral zone that encompasses the Rocky Mountains. In a parallel universe, Germany and Japan have divided the United States into the Greater Nazi Reich in the east, with New York City as its regional capital, and the Japanese Pacific States to the west, with San Francisco as the capital. It was created by Frank Spotnitz and produced by Amazon Studios, Ridley Scott's Scott Free Productions (with Scott serving as executive producer), Headline Pictures, Electric Shepherd Productions, and Big Light Productions.

The Man in the High Castle is an American dystopian alternate history television series created for streaming service Amazon Prime Video, depicting a parallel universe where the Axis powers of Nazi Germany and the Empire of Japan rule the world after their victory in World War II.