When two year old Ryan Stark goes missing from a high street merry-go-round, his distraught mother, Kayla reports him kidnapped and a massive police hunt is launched to find the missing toddler. In spite of public appeals and additional police manpower, the search throws up more questions than answers. The legal case uncovers a history of dealings with the social services before Ryan went missing, something which alerts our heroes to the possibility that his mother isn’t being entirely truthful. With more than one suspect and little physical evidence, will Ryan’s family ever learn the truth of what happened to their baby boy?

Lying in a pool of blood, call girl Katka Cizek, seems to have only one admirer capable of her murder. A man with her on the night, a man without an alibi, a man with everything to lose were his secret obsession for her revealed. A seemingly cut and dry case, Alesha, given the reins to lead the cross-examination, begins to suspect someone has reason to frame the accused. Dogged in her pursuit of the truth, she unearths a betrayal of such enormity proving there are no winners in this case.

A night club peppered with bullets. Two victims bleeding out on the floor. The start of a deadly gun rampage through the streets of London. With the media swarming all over the case and a hostage to find, DS Matt Devlin and DS Ronnie Brooks are up against the clock as they try to track down the Bonnie and Clyde duo wreaking havoc on the city streets. Capture is far from closure when defence barrister, Phyllis Gladstone, takes the case on, arguing that one of the pair was more innocent victim than violent killer. Did the defendant act out of fear - beaten and bullied into submission by her partner-in-crime, too terrified to escape and alert the police? With two sides to every story, the team are under pressure to make sure someone is held responsible for a murderous spree that cost five lives.

Stabbed to death while they slept, the killings of David and Elaine Lerner prove a mystery to DS Matt Devlin and DS Ronnie Brooks. Universally loved, there’s not a single lead that points to grievances held or enemies made. The previous owner of the house soon emerges as a much more likely target for attack - Camilla Mallon, a banker embroiled in a hedge fund scandal. Could the brutal murders be a case of mistaken identity? As our Crown Prosecutors navigate this seemingly senseless crime, Jake’s old mentor, Margaret Rumsfield argues the accused should face only manslaughter charges. Without motive, without intent, can our heroes make a murder charge stick?

A drive-by shooting outside the Old Bailey leaves one police officer dead and another wounded in what appears to be a targeted attack on a witness in an attempted murder trial. However, Ronnie and the team are surprised to learn the gunman was specifically targeting police officers, believing his family victims of a police cover-up. The defense team argues their client has been subjected to racism by the police. Can Jake and Alesha convince the jury that the defendant ought to be tried as a murderer and not a victim?

A bungled robbery leads to an innocent hero being shot dead and a hostage with a potentially life threatening medical condition being seized by two armed gunmen. It's up to Ronnie and Sam to beat the clock and find the hostage in just ten hours.

When a petty criminal makes a deathbed confession to the murder of a teenage girl, Ronnie is left shaken to the core as he is forced to reopen a case he thought he had put to bed fourteen years ago.

The murder of an elderly janitor in his home is carried out with such precision and planning that the only evidence the killer leaves is designed to lead the detectives around in circles.

A murder investigation is launched when a concerned citizen alerts the police to a shocking video that is spreading like wildfire on the web, in which a teenage girl is attacked and shot.

Over the course of one long day, the team works on three separate cases, including tracking a serial killer, intervening in a family dispute turned murderous, and disproving an accusation of police intimidation. Will all of the team make it through with their careers intact?

The frenzied stabbing of a police forensic lab technician unsettles the team in a way they never expected when Detective Sam Casey falls for the killer's next intended victim.

A suicidal man kills several people when he causes a catastrophic train crash, and Sam struggles to cope after one of the young victims dies in his arms.

When a person is found dead in the cells, Sam becomes the main suspect, leaving Ronnie and Wes facing a race against time for them to get their hands on the real culprit.

A man is found dead in a hotel room owing his ex-wife thousands of pounds in child support. The child's grandfather is the only suspect, but is the case that easily solved?

When the body of a woman is pulled from the Thames after her car is found in suspicious circumstances, the victim's abusive ex-husband seems to be the prime suspect.

Following the suspect death of an old woman, Ronnie and Sam are lead to believe that the old woman's carer was to blame.

A gay father is found beaten to death and the son that he adopted with his partner is missing. In a race against time, Ronnie and Sam go on the hunt for the missing boy.

Philip Gardner, a psychiatrist specialising in troubled adolescents, is stabbed to death and Ronnie initially believes that one of his clients is the culprit.

When a car is pulled from a river with a skeleton in its boot the pathologist reckons both have been there for a quarter of a century and eventually the dead man is shown to be Taylor Kane, one of the first black undercover officers, who disappeared at the time of the Brixton riots.

Unemployed family man Neil Lester is battered to death with a paper-weight in his own home, having convinced his wife that he has been working for the past nine months

When a spate of shootings claims one of Ronnie and Joe's own, Wes Leyton, the pair are left with a race against time as the next target the shooter has in his cross-hairs is CPS boss Henry Sharpe.

Still affected by the death of one of their team, Ronnie and Joe have a new case to deal with when a young mother is stabbed to death in a busy London marketplace.

Survivor begins with the investigation into the murder of Prison Officer Charlie Tyner who is found shot dead on a council estate in Hackney. It soon comes to light that, rather than being the good clean officer of Her Majesty's Prison Service we first believe him to be, Charlie Tyner is corrupt and taking advantage of his position in prison in a number of ways. There are plenty of prisoners inside with reason enough to want to kill Charlie but, being in prison, they have solid alibis so who killed Charlie and why? Crown Prosecutors James Steel and Alesha Phillips find themselves at odds with their boss, George Castle, who is keen to bring to justice the killer of a prison officer. James and Alesha can't help but feel Tyner's abuse should be brought into consideration when charging the accused. And they have their eye on a much greater prize - a career criminal connected to Tyner who has evaded the justice system for too long. Can James and Alesha convince the key witness to give evidence against a man she claims to love?

The terrifying CCTV image of a toddler being led to his death haunts this episode of Law & Order UK which deals with the difficult and morally complex issue of children who kill. As a society, we are very unforgiving of child killers but if the killers themselves are only children, it begs the question - who really is responsible for the crime? With two children in the frame, each blaming the other, can forensic evidence prove who is guilty of strangling little Conor to death? In an emotionally gut wrenching episode, George defies his superiors and instead takes instruction from the victim's mother who has a surprising point of view on the crime. Can the justice system, and ultimately the government, afford to be lenient?

When a former vice cop is discovered beaten to death in an underpass, DS Ronnie Brooks and DS Matt Devlin find their investigation going in unexpected directions.