At the end of the first series, we saw NSA agent Jerry Bernstein narrowly avoid being extradited back to the States to face charges of treason. Indebted to his boss Christine for stepping in to protect him at the last minute - albeit with ulterior motives - we start Series 2 with Jerry on the back foot.
They've countered the Russians, they've foiled a plot to disrupt the NHS and they've prevented a nuclear disaster... But in this one-off hour-long special, the latest threat to our gang at the Government Communications Headquarters is personal. With the future of CySec at stake, the team have to go rogue to save their reputations and their jobs.