Duncan (Ben Chaplin) attempts to spend quality time with his son, Fred (Benjamin Campbell), but finds it difficult in the face of Sarah’s (Natasha Little) open hostility. At the home of her billionaire boyfriend, Max Klein (Matt Rippy), Sarah informs Duncan that she and Max intend for him never to see Fred again.

Holly (Charlotte Riley) struggles to separate her personal grievances from her professional ambitions. She adds to Duncan’s troubles by threatening to publicly expose his relationship with Kristina (Kasia Koleczek), the sex worker with whom he has a longstanding arrangement. In anticipation of the splash, Duncan is forced to explain to Fred that he has been paying for sex, while Kristina has questions of her own for Holly.

James (Al Weaver) reopens communication with Jon Brooks (Tom Bell), an MI5 source who is ready to blow the whistle on the government’s Resonance programme. When Amina (Priyanga Burford) and Holly learn what the programme entails, they are convinced that the story will be the most important The Herald will ever run.

Emmerson (David Suchet) presents Duncan with a seemingly impossible task, and Ed (Paapa Essiedu) is forced to examine his own journalistic ethics, while Holly and Duncan go head to head.

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This final episode will air Thursday 11 October