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.

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.

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?

A devastating attack puts new boss of SO15 Rachel Carey at the heart of a conspiracy more deadly than anything she’s encountered before.

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.

When British soldier Shaun Emery is accused of a crime he strenuously denies, newly promoted DI Rachel Carey is assigned to investigate.

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.

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.

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.

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.