Seasons & episodes
S1 · E1What Happens in Helmand 2019-09-03 · 56 min
When British soldier Shaun Emery is accused of a crime he strenuously denies, newly promoted DI Rachel Carey is assigned to investigate.
S1 · E2Toy Soldier 2019-09-10 · 57 min
After key evidence is mysteriously redacted from her investigation, Carey is forced to find other ways of pursuing Shaun, who is searching for answers of his own.
S1 · E3Truffle Hog 2019-09-17 · 59 min
The stakes intensify for Shaun when he comes face to face with inscrutable CIA agent Frank Napier, whilst Carey’s investigation appears to hit rock bottom.
S1 · E4Blind Spots 2019-09-24 · 56 min
Carey develops a theory as answers begin to reveal themselves, and Shaun finds himself trusting an enigmatic stranger who promises to lead him to the truth.
S1 · E5A Pilgrim of Justice 2019-10-01 · 60 min
Surrounded by the architects of his downfall, the truth behind what happened to Shaun is revealed to him in precise detail. Meanwhile, Carey seeks for answers of her own and uncovers the complex conspiracy that is Correction.
S1 · E6Correction 2019-10-08 · 60 min
Carey teams up with Shaun Emery to try and expose Correction, but Napier is one step ahead. Shaun’s future, and that of the nation’s system of justice, lie with one person. Carey has a decision to make.
S2 · E1Invisible Men 2022-08-28 · 58 min
Invisible assassins stalk London, and DCI Rachel Carey is drawn into a case involving a rising politician that brings greater risks than she first imagines.
S2 · E2Made in China 2022-08-29 · 59 min
In the wake of a shocking broadcast hack during an interview with Isaac Turner, Carey must work out who is responsible and whom she can trust.
S2 · E3Charlie Foxtrot 2022-09-04 · 57 min
In the aftermath of a television hack, a major suspect makes a getaway. Time is against DCI Carey as she tries to act before the invisible assassins strike again.
S2 · E4#therealzacturner 2022-09-05 · 59 min
DCI Carey hunts a suspect and the investigation widens its focus. Isaac Turner’s family life begins to fall apart, but then he stumbles upon a lead.
S2 · E5Imposter Syndrome 2022-09-11 · 59 min
Will Isaac Turner meet his digital doppelgänger? DCI Carey pursues a risky new suspect – will she finally find out who is behind everything?
S2 · E6The Flip 2022-09-12 · 70 min
The net tightens. After DCI Carey is kidnapped, her instincts are proved right – but she’s in more danger than ever before, while Isaac Turner pursues his own agenda.
S3 · E1Don't Look at the Camera 2026-03-08 · 59 min
A devastating attack puts new boss of SO15 Rachel Carey at the heart of a conspiracy more deadly than anything she’s encountered before.
S3 · E2Lone Wolves 2026-03-15 · 60 min
More video evidence of the attack emerges, isolating Carey further from those around her. With pressure building to find the assassin, Carey looks for allies in unlikely places.
S3 · E3The Scarecrow 2026-03-22 · 59 min
Carey searches for one suspect, whilst Napier deals with another. As evidence mounts, Carey is forced to avert a further catastrophe – has she made a terrible mistake?
S3 · E4Kill Switch 2026-03-29 · 59 min
Carey is under pressure to charge Whitlock, but with Napier off-radar, she has bigger problems. Pierson’s colleagues have a crisis in confidence, which takes a dangerous turn.
S3 · E5Simon Says 2026-04-05 · 61 min
Forging an uneasy alliance, Carey and Pierson are pursued through a network of underground tunnels. Pierson’s past comes back to haunt him, and the truth about Simon is revealed.
S3 · E6Someone to Watch Over Me 2026-04-12 · 76 min
Carey has regained control of SO15, but after Figgis makes a bold move, she faces an impossible choice - just how far is she willing to go to protect the truth?