I have heard of this show, and speaking of gritty late-Cold-War-era series that still hold up, I think Edge of Darkness should be up there. It was remade into a

I have heard of this show, and speaking of gritty late-Cold-War-era series that still hold up, I think Edge of Darkness should be up there. It was remade into a terrible action film in 2010, but the original TV series from 1985 is a masterpiece of plotting and pacing, and non-verbal storytelling.