The Bafta-winning, international hit spy drama returns for a nail-biting tenth and final series. With the truth about Lucas North finally revealed, and following his rooftop showdown at the end of the last series, Harry is facing some complicated questions about the future of Section D as well as some skeletons from his own past. Relationships between the CIA and MI5 have never been more strained, but add the Russian secret service to the mix and Harry and his team have a power timebomb on their hands. Fast-paced, tense and exhilarating, the latest series sees the team tested to their limits as the pressure is on to stop whoever is attacking the fledgling relationship between Britain and Russia.