Seasons & episodes

S18 · E1Sniper's Nest (1) 2015-01-06 · 60 min＋

Nikki and Jack strive to track down a sniper at large in London and stem a public crisis.

S18 · E2Sniper's Nest (2) 2015-01-07 · 60 min＋

Nikki and Jack investigate links between the victims to close the net on the killer.

S18 · E3Falling Angels (1) 2015-01-12 · 60 min＋

Nikki and Jack investigate a man killed by a train on the London underground.

S18 · E4Falling Angels (2) 2015-01-13 · 60 min＋

Nikki helps high-flying DI Luke Nelson unearth painful childhood memories.

S18 · E5Protection (1) 2015-01-19 · 60 min＋

A suspected paedophile is found murdered in a children's playground.

S18 · E6Protection (2) 2015-01-20 · 60 min＋

Nikki, Jack and Thomas focus in on Lizzie's movements on the night of Barge's murder.

S18 · E7Squaring the Circle (1) 2015-01-26 · 60 min＋

The nanny of a Russian oligarch is killed in a botched assassination attempt.

S18 · E8Squaring the Circle (2) 2015-01-27 · 60 min＋

A young woman working for the Doshis is found dead in Maksim's apartment.

S18 · E9One of Our Own (1) 2015-02-02 · 60 min＋

The Lyell team are under pressure to catch the killer of an admired Essex police officer.

S18 · E10One of Our Own (2) 2015-02-03 · 60 min＋

When the body of local criminal Jason Simons is found, the course of the case is changed.