I have a half-formed memory of a TV series I watched as a youngster (late 70s/early 80s) about a young man trying to find out the truth about his parents' death/disappearance in Cold War Eastern Europe some years before. I seem to recall they were spies(?) trying to escape from the baddies/police. The intro scene was a slow motion car chase at night set to a slow instrumental soundtrack. It's been nagging at me for days, can someone please put me out of my misery?