That's good to hear, am a fan of episodic TV. If the pay off is worth it am all for the slow burn; what concerns me most is filler content and "monster of the week" like TV and felt that The Sheild may be in that mould to a certain extent. I will give the series a chance now.
That sounds familiar, isn't it a movie? might be wrong

will probably give that a go to because refreshing watching a series that isn't American and often they make up for the lack of production with a solid narrative. The Returned comes to mind, french horror/thriller; season 2 is taking a while to release but man it's the most unique take on zombies ever! you should defo check it out, it's in french but that won't take away from your experience.