Police anti-corruption unit AC-12 get a tip off about DCI Joanne Davidson, who is leading a murder inquiry into the death of journalist Gail Vella. It’s alleged that she deliberately diverted an armed convoy on the way to arrest a suspect. As AC-12 begin to investigate, they quickly realise they’re up against their most enigmatic adversary yet. Is DCI Davidson taking orders from ‘H’, the Fourth Man? Will Superintendent Ted Hastings see out his career-long fight to uncover institutionalised corruption?
7 Eps.
Cast: Martin Compston, Vicky McClure, Adrian Dunbar
Police anti-corruption unit AC-12 get a tip off about DCI Joanne Davidson, who is leading a murder inquiry into the death of journalist Gail Vella. It’s alleged that she deliberately diverted an armed convoy on the way to arrest a suspect. As AC-12 begin to investigate, they quickly realise they’re up against their most enigmatic adversary yet. Is DCI Davidson taking orders from ‘H’, the Fourth Man? Will Superintendent Ted Hastings see out his career-long fight to uncover institutionalised corruption?
7 Eps.
Ends 31 Mar 2026
Eng
Chi, Eng
Cast
Martin Compston
Vicky McClure
Adrian Dunbar
Director
Daniel Nettheim
Gareth Bryn
Jennie Darnell
New
E1
Episode 1
E1
Episode 1
New
DCI Jo Davidson has been leading the investigation into the murder of journalist Gail Vella for nearly a year…
57mins
Ends 31 Mar 2026
New
E2
Episode 2
E2
Episode 2
New
Having opened an official inquiry into DCI Jo Davidson and Operation Lighthouse, AC-12 begin to suspect…
58mins
Ends 31 Mar 2026
New
E3
Episode 3
E3
Episode 3
New
When a new witness comes forward naming Terry Boyle as the man who bragged about Gail Vella’s murder…
57mins
Ends 31 Mar 2026
New
E4
Episode 4
E4
Episode 4
New
With Buckells under arrest, DCI Jo Davidson takes command of Operation Lighthouse…
57mins
Ends 31 Mar 2026
New
E5
Episode 5
E5
Episode 5
New
Rocked by the revelation that Jo is related to Tommy Hunter, AC-12 pursue leads in the Vella case…
58mins
Ends 31 Mar 2026
New
E6
Episode 6
E6
Episode 6
New
Hastings, Steve and Carmichael arrive at the scene of the stand-off to find Ryan dead of a gunshot wound and Kate…
59mins
Ends 31 Mar 2026
New
E7
Episode 7
E7
Episode 7
New
AC-12 intercept new messages from the ‘unknown user’ which suggest Jo is in danger…
58mins
Ends 31 Mar 2026
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