Series 19

Jan 4, 2016 · 1 hr

Nikki arrives at a murder scene to find it's a carbon copy of a case in her past.

Jan 5, 2016 · 1 hr

Nikki becomes the prime suspect after a former colleague is murdered.

Jan 11, 2016 · 1 hr

A young British Muslim returns to the UK, and concerns over her intentions soon escalate.

Jan 12, 2016 · 1 hr

Thomas must put his personal feelings aside as the team track down Begovic.

Jan 18, 2016 · 1 hr

An ex-convict is killed and suspicion lands on a recently released child killer.

Jan 19, 2016 · 1 hr

Further victims are killed and a distinctive modus operandi begins to become clear.

Jan 25, 2016 · 1 hr

The shooting of a teenager in an armed police operation triggers a series of murders.

Jan 26, 2016 · 1 hr

Jack leads the hunt for suspected killer Bruno, the brother of the shot teenager.

Feb 1, 2016 · 1 hr

A family murdered at a picnic leads the team to the female victim's estranged husband.

Feb 2, 2016 · 1 hr

As Nikki and Jack move closer to the truth, their lives are thrown into mortal danger.