Very interesting and new approach on historical and current espionage cases in Vienna, Austria. Great theme song composed by Peter Sax "Undercover". Rare specialists and experts in interviews from former vice chancellor of austria to Oscar award winning Grozev (Bellingcat) - lead expert is Boris Volodarsky along side the former head of Austria's Federal Office for the Protection of the Constitution and Counterterrorism and many more, illustrated with reenactment scenes in authentic venues of the Austrian capital. Beautiful train scenes and overall very well rounded story including a Time Traveller making the historic connections in a charming way.
