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