The last five episodes have all been on the precipice of being great but moved far too slowly. This is the first one that has really impressed me, with a fast-moving storyline which was extremely entertaining!
There were interesting scnes with the children as well, while there were some unexpectedly amazing scenes with the KGB out mole-hunting!
Everything came together showing a superb storyline and I was really impressed with this one! Hopefully this high standard is maintained!