Led by experienced spook Hannah (Joanne Froggatt, Life On Mars) the rookie team is made up of Charlie (Liam Boyle, Drop Dead Gorgeous) a mathematician and genius problem solver, Rachel (Ruta Gedmintas, The Tudors) an ex-police officer with ambitions to be a leader, and Jez (Heshima Thompson, Prime Suspect: The Final Act) a new breed of spook altogether - a former criminal gone straight. As well as Vik (Christopher Simpson, Brick Lane) who chose MI5 over a career in his family's business, whilst Rob (Andrew Knott, The History Boys) was a junior doctor at the time of the bomb and Kylie (Georgia Moffett, Doctor Who) was a psychology student, just back from her gap year.
Executive Producer Karen Wilson explains: "Nearly one year on from the bomb, Britain is starting to get back to something resembling normality. But, under the surface, there have been massive changes: terror warnings and security checkpoints are regular features of everyday life, and there's a flourishing black market in everything from ID cards to anti-radiation drugs. This is the world of Spooks: Code 9 and it holds a whole new set of dangers for MI5's young pretenders."