Jed Mercurio’s police procedural drama returns with Adrian Dunbar, Vicky McClure and Kelly Macdonald. the dynamite AC-12 team comprised of Ted Hastings (Adrian Dunbar), DI Kate Fleming (Vicky McClure) and DS Steve Arnott (Martin Compston) return to work with a new recruit. The squad will be investigating DCI Joanne Davidson (Kelly Macdonald), who has been described as “the most enigmatic adversary AC-12 have ever faced” – no small claim given the complex cases they have unravelled thus far.