Spooks (series 1)
Kudos Film and Television developed "Spooks" after releasing Channel 4 medical drama "Psychos" in 1999, though the company initially faced friction from television networks which saw no potential in a post-Cold War spy show. The producers later successfully pitched the series to the BBC after the networks' commissioning teams were replaced. Four episodes were being written when the September 11 attacks took place, and the some scenes were rewritten to take the event into account to show the audience "Spooks's" goal of fighting terrorism. Throughout production, the producers were advised by former intelligence officers from the Security Service, KGB and Central Intelligence Agency. Filming took place from November 2001 to March 2002.
Spooks (series 10)
Early on in the series' developmental stage, it was decided that the series would only consist of six episodes. The decision was likely based on budget cuts from the BBC. The series featured a mix of standalone stories, and a "big old arc" that runs through it. The arc focuses on Harry, the only remaining original lead character from the first series. The Harry/Ruth storyline continued, as Firth believed it is "too delicious to stop." The series also saw the pair's relationship enter a new phase, though it may probably be "too late for them to proceed any further." Brackley and Vincent realise that there are fans of the show who will be "immensely cheesed off if they get anything less than Ruth riding in on a unicorn to marry Harry in a white suit," but at the same time know other fans "love the uncompromising toughness of "Spooks". And both viewpoints were always well represented around the table."