Episodes
Sniper's Nest (1)
7.8Nikki and Jack strive to track down a sniper at large in London and stem a public crisis.
60 min
Sniper's Nest (2)
8.0Nikki and Jack investigate links between the victims to close the net on the killer.
60 min
Falling Angels (1)
8.0Nikki and Jack investigate a man killed by a train on the London underground.
60 min
Falling Angels (2)
8.2Nikki helps high-flying DI Luke Nelson unearth painful childhood memories.
60 min
Protection (1)
8.0A suspected paedophile is found murdered in a children's playground.
60 min
Protection (2)
8.0Nikki, Jack and Thomas focus in on Lizzie's movements on the night of Barge's murder.
60 min
Squaring the Circle (1)
7.8The nanny of a Russian oligarch is killed in a botched assassination attempt.
60 min
Squaring the Circle (2)
7.7A young woman working for the Doshis is found dead in Maksim's apartment.
60 min
One of Our Own (1)
7.8The Lyell team are under pressure to catch the killer of an admired Essex police officer.
60 min
One of Our Own (2)
7.8When the body of local criminal Jason Simons is found, the course of the case is changed.
60 min