The only 2 reviews for this episode had spoiler warnings, so I thought I would try to add a review (my first IMDB review perhaps?) without spoilers.
There's a number of great things about this episode. If you're not sure about whether to continue to watch this series, I would encourage you to keep at it. But if your 14 year old child is watching too, maybe view this episode before they do, as the ante on adult-ness is upped a bit in this ep.
This sort of sci-fi is great at slowly peeling back the layers to tease us, to reveal things bit by bit, and as I type I am wondering about a number of things, what will happen next? We also have further blurring of good guys and bad guys in this ep, a number of situations had me asking "what would I do?" and "Does the end in this case justify the means?" Maybe I am overthinking it, but enjoy a bit of a moral quandary.
This episode advances all the story arcs, there is lots of tension, great story-telling with some moments having events implied rather than directly seen, great acting (I think), and I am already thinking the next episode will be a cracker.
I rated this ep 10/10, perhaps for personal reasons. But if you're a conservative viewer, maybe a bit squeamish, then you've been warned. If you can handle a couple of things in your face like an adult, then this is *great modern sci-fi*.