Seasons & episodes

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?