The show, set in 1962, is a look at what the world would look like had Germany and Japan won WWII.
Based on a 1963 novel by Phillip K. Dick, who also wrote Do Androids Dream of Electric Sheep?, a novel that was remade into the movie Blade Runner, The Man In The White Castle television show appears to be a very exciting and suspenseful work of art.
It's not surprising, really - the novel by Dick won the 1963 Hugo award for Best Novel in a science fiction or fantasy genre.
In the television show - I haven't read the novel in 40 years and admit to not recalling much of it as I was a pre-teen then - Japan has control over the western part of the U.S. as the Japanese Pacific States (see image of its flag above), there's a rocky mountain neutral zone, while the east is under Nazi Germany rule.
So far, 10 episodes of Season 1 were released in 2015, with one episode (so far) having been aired in 2016 - aka Season 2.
As guessed, Amazon Studios is a part of www.Amazon.com - a division that develops television shows, movies and comics from online submissions and crowd-sourced feedback - getting its start back in 2010.
It is distributed through Amazon Video, Amazon’s digital video streaming service, and likes to consider itself as a competitor to both Netflix and Hulu - but truthfully, it has a long ways to go.
The Man In The High Castle is, I believe, the first major hit for Amazon Studios, despite the other programs it has produced garnering decent reviews.
Amazon Video is currently only available to residents of the United States, United Kingdom, Japan, Germany and Austria. Customers of Amazon Video can stream on the web using an HTML5 player supported in the Chrome, IE11 and Microsoft Edge browsers, or using Microsoft Silverlight in Firefox.
Use on various TVs, Blu-ray players and consoles (including Panasonic, LG, Samsung and other TVs) requires a broadband connection. Amazon Video is also available on recent PlayStation, Xbox, Wii and Wii U video game consoles.
I am purposely not saying too much about what The Man In The High Castle is about, but what the hell... I already told you what it was about.
One episode in, and I am hooked.
If you are able, give it a watch... and thank your lucky stars you don't have to speak German or Japanese in North America.