Dan Snow, Anita Rani and Ade Adepitan reveal the hidden systems and armies of people running some of the greatest cities on earth.
The Boys
Chernobyl
Squid Game
Game of Thrones
Stranger Things
The Mentalist
Brooklyn Nine-Nine
Friends
Loki
WandaVision
Breaking Bad
Sex Education
The Big Bang Theory
Death Note
Sherlock
The Lord of the Rings: The Rings of Power
The X-Files
The Walking Dead
The Vampire Diaries
Stargate Universe
