The Best Episodes Directed By Lewis Arnold

The police face the prospect of a multiple murderer at large in the wake of more linked murders, but the testimony of a survivor could turn the tide.

The investigation spreads to Bradford with the murder of another young woman, and a female police officer is tasked with dangerous undercover work.

When another woman survives an attack, detectives hope that they are in with a chance of finding their man as a driver in Leeds emerges as prime suspect.

The police revisit historic attacks in the hope of identifying further victims, and George Oldfield is fired up by the arrival of a letter from the killer.

The police struggle to catch the killer of a woman murdered in Leeds, and a desperate mother is forced to make a difficult decision.

Mark suffers a tragic personal loss and is given the chance to leave prison for a day. Eric is forced to take greater risks to protect his family. But where will he draw the line?

West Yorkshire Police launch a huge public appeal in the hope of rooting out the killer as some detectives begin to voice concerns about the investigation.

After a chance arrest, the killer is finally caught and the failures of the investigation are laid bare in the wake of the trial.

As the hunt for the killer continues, Kevin Salisbury from the MET arrives to assist in the investigation. And tensions mount as the killer torments the community further.

Reeling from Des' change in plea, Jay and the police throw themselves into proving premeditation. If they can show the court that Des was undoubtedly of sound mind when he committed his crimes, he will go down and never be released.

Mark Cobden is sent to prison and has to learn quickly how to survive. When an inmate identifies prison officer Eric McNally’s weakness, he faces an impossible choice.

Mark is being bullied by fellow inmate Johnno. Does he tell the prison officers and be labelled a grass or risk the attacks becoming more and more violent? Eric’s son is attacked.

On 9 February 1983, Detective Chief Inspector Peter Jay discovers a drain clogged with rotting flesh and bones. The culprit, Dennis Nilsen, freely admits to the police that it's not just one or two bodies, but "15 or 16, I think".

Things are at the lowest possible ebb for the fractured Hawkins family. With Joe in exile and the kids tired of their parents' lies, Laura decides it's time to tell the truth

With limited resources, Jay and the police continue to dig into Nilsen's memories in an effort to convict him for the murder of every one of his victims. But when Des withdraws his cooperation and stops talking, Jay fears justice will be lost.

DCS Ian St Clair is called to investigate a tragic and unexpected murder in an ex-mining town as news of the crime threatens to inflame historic tensions.

Killer Synth is the breaking news story, and public panic is growing. Karen is hot on Niska's tail, but are her motives for finding her more personal than professional?

Laura must decide whether to accept Niska's request, while Karen and Pete learn about a special Synth being sold for unprecedented amounts on the black market. Hester uses questionable means to gain information from her prisoner, and Leo faces a new mission. Mia takes a risk to help Ed but is her secret now in jeopardy?

The Hawkins family try to get their lives back on track. Niska is driven to a fateful decision while on the run in Berlin. Leo, Max and Mia are living in hiding near a coastal town when they are threatened by a mysterious organization.

Ed comes under scrutiny, and Mark makes a decision.

A London family face a dilemma after their 13-year-old son Isaac is molested by a Hollywood film producer while filming in the U.S. Unable to pursue the perpetrator through the UK courts they accept a substantial pay-off to keep quiet.

As the day of the film premiere approaches and young Isaac is forced to come face to face with his abuser, will Manny finally act when he is confronted by his son's despair?

As it comes under increasing pressure the Mensah family begins to fracture, Isaac spirals out of control and as the truth starts to come out Jess plays a dangerous game with the press.

With Isaac in hospital, Manny and Sam are threatened by Jotham's lawyer. Mother and father both decide to seek justice for their son - but in very different ways.