Also the second episode was great. The "We need your permission to kill three men" scene was so intense. The Boris dude, the one who had to go with Jared Harris, was stubborn and a prick, but not a complete and unreasonable asshole, when the truth stared at him in the face he didn't look away, and he reluctantly realized that the other scientist was right.
If all the other three episodes are this good, I can see why the rating are through the (covered with graphite) roof.