Found this on Amazon Prime and gave it a go. Should not have. A lot of story lines could have been sacrificed (the sister for one; the 'southern' lieutenant for another) to get a decent wrap-up for the series. It's as if they ran out of money or time. And then decided to go with tying up just one plot line with the least likely ending.
I generally am generous with my ratings. Here I gave a '3' for atmosphere and an unusual but interesting time/place.