Overview
- Episode one airs on BBC One at 9pm on Monday, 29 September, with the entire series available on BBC iPlayer from 6am the same day.
- Set two years into the officers’ careers, the story follows Grace, Annie and Tommy as cases draw them into accountants, lawyers and other professional enablers of organised crime in Belfast.
- Writers Declan Lawn and Adam Patterson describe this as the show’s most emotional season yet, promising tension balanced with moments of humour.
- Cathy Tyson joins as private members’ club owner Dana Morgan and Michael Smiley appears as intelligence officer Paul “Colly” Collins from C3, alongside the returning cast.
- Buoyed by a BAFTA win and strong season‑two ratings (5.6 million average; 7 million for episode one), the writers say season four is nearly written, with preparation planned for November and filming targeted for February.