I agree with the last reviewers that this is Barbara Bain's show all the way as Cinnamon, the mistress of seduction, plus a nice wardrobe. Her wardrobe changes are Hollywood 101, and you have to tip your hat to the behind the scenes fashion folks at Paramount for that.
The IMF crew is more or less shuffled to one side as it's Cinnamon's turn; her mission to romance a nefarious spy, called Andre Fetyakov, played by future soap opera star Eric Braeden. Bottom line concerns a famous scientist, who defected, and knows where the bodies are buried, now marked for assassination. So its Cinnamon versus the deadly Fetyakov, who definitely has an eye for the ladies... but he should have stayed home that day!
Original writing from Julian Barry, who a few years later would write the award winning stage play (and later screenplay) LENNY, all about Lenny Bruce. The only debit is that had this been actual factual cloak and dagger stuff, Cinnamon would have been covered with a white sheet. The ending will NOT disappoint. However, all of us true blue M. I. enthusiasts will never cross that path!
Just sit back and watch it all unfold, and it's one episode you will want to see again.
Great support by veteran Albert Dekker (best remembered by sci fi fans as DR CYCLOPS) playing Colonel Shlemenko. Don't you love the names? Dekker was always at his best in sinister roles, his final film appearance before his sudden death was in THE WILD BUNCH (1969). Stone-faced heavy Joseph Sirolo plays Suprin. Sirolo is another actor from the old school of heavies.
Director Leonard J. Horn gets everything he wants from this crew and more. At the time, Horn was also directing for VOYAGE TO THE BOTTOM OF THE SEA and THE FUGITIVE. Yes, some of the background settings are cardboard and plywood, meaning Paramount must have put all their money into Barbara Bain's clothes! You can't have it all. And this was a tv budget, not a movie budget.
FROM SEASON 1, remastered CBS dvd box set, which has become a collectors item.