Tom Bradby has explained his inspiration behind novel Secret Service which has been turned into a gripping five-part series. Gemma Arterton takes the leading role as a senior MI6 operative Kate Henderson who is suddenly thrust into the spotlight. On the surface, her life appears ordinary, a civil servant married with two teenage children. However, to those who don't know her well, Kate's true role is heading the Russia Desk at the Secret Intelligence Service. The storyline is based on the 2019