This was one of my favourite TV shows in the 60's, when I was very young. Although not quite as good as S2 & 3, Series 1 is not far off.
My favourite then, and still is, Barbara Bain. I was in awe of Cinnamon Carter when I was a little girl and it is easy to see why 40 years later. She is sophisticated, smart, brave, quick witted and beautiful. Many of the TV heroines of the 60's, and even today, lack Cinammon's attributes.
Yes, the IMF succeed in their missions every time, but it is the how that kept and still keeps viewers fascinated. Enjoy the thrills.