I watched this series because I had been approached by Mormon missionaries when I was a teenager. At the time this evolved into a general discussion of religion and Christianity, and then in particular, of course, of the LDS church, its history, beliefs, the book of Mormon, etc. At that time I had a very keen interest in Christianity, having been baptized and confirmed a Lutheran Protestant. I was trying to find out what religion is all about and what the substance of it was. All this led me to renounce any belief in religion altogether, becoming an avowed atheist. Religion is a man-made doctrine created in their search for answers for life and our existence in this world.
This series confirmed all this to me again, man (the term is used in its traditional usage here) creates doctrines for any suitable purpose to them. This also holds true for politics, as we can see in the latest world developments.
The series is full of lengthy discussions of the LDS teachings, their origin, whether they must be adhered to and abided by even if they are against the law. The Lafferty brothers go at this ad nauseum; the uninitiated would certainly lose interest after the third episode. Unfortunately, this is one of the very weak points of the series. They could have dealt with that in one or two episode and rather focused on the double murder case which resulted from those aberrant beliefs. I would think this series is more for the members of the LDS church than the general public, After all, there are still quite a few of those LDS fundamentalists out there, scattered over several states, Mexico and Canada.
A better series about Mormons had been the HBO series Big Love showing the spiritual conflict of some members just as clearly without lengthy fundamentalist discussions.