I have to leave a review for this series because it's one of the few thrillers I've seen that actually made sense beginning to end. There are twists and turns throughout and the plot is perfectly paced with just enough story for 16 episodes. And there are no derailments into sci-fi nonsense (like a mid-series brain transplant for example...).

The writers of this show had firm command over what to reveal when - playing with the audience just enough to keep the guessing game of who from the past is who in present day fun. I also loved the way this series explored brotherhood and what it means to be loyal.

I'm exceptionally picky with thrillers and this one delivered in a big way. If you like thrillers this is a must watch.