This was a superbly acted series based on a true story which I still remember vividly 30 years later. Jim Broadbent plays a Russian in the upper military echelon who wants to leak information to the British. He comes to trust a British businessman and their story is truly gripping. I wish I could find a copy. The story is based on a book by Andrew Carr, called "Wynne and Penkofsky". What makes this tale extraordinary is that these two are ordinary people caught up in ugly realities. The direction and performances were flawless. It is to be hoped this series becomes available again. The lead actors, David Calder and Jim Broadbent have had stellar careers and together they were pure theatrical magic.