Episode list

After DCI Carey is kidnapped, her instincts are proved right. Isaac Turner pursues his own agenda.

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.

Shaun is interrogated by the CIA in a covert safe house, and while Rachel sees CCTV footage of him going in, she then finds she is unable to locate him inside. Her investigation leads her to make shocking discoveries about the degree to which CCTV footage might be manipulated. Finally released by his American captors, Shaun goes on the run from the police - but his quest to clear his name soon takes a devastating turn.

Neither Carey nor Shaun is prepared for what lies ahead, as the truth in all its complexity and ambiguity is revealed to them.

In the wake of a shocking hack during an interview with Isaac Turner, DCI Carey must work out who is responsible and whom she can trust.

Will Isaac Turner meet his digital doppelganger? DCI Carey pursues a risky new suspect.

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.

Rachel finally comes face to face with Shaun, who offers up the location of the CIA safe house before managing to evade arrest once more. The fugitive soldier flees into an encounter with two mysterious strangers, who offer to provide him with the answers he is looking for. Rachel pays Napier a visit, and the meeting leaves her more convinced than ever that the CCTV network has been compromised.

Isaac's paranoia intensifies after his hacked TV interview and SO15 widen their search for the invisible assassins.

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.