The 20-year-old unsolved death of a young boy leads to the discovery of repressed memories, and a risky case for James and Alesha.

A homeless man is found beaten and unconscious in a park. Because he is bipolar his testimony is disjointed and make him unable to identify his attacked. A neighbourhood resident is charged with the premeditated attack.

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?

The team investigate, when mother and carer Lia Brown is killed by a stray bullet,what the involvement is of 12-year-old Kaden Blake in her death. Kaden is caught up in the local gang culture, so keeping silent is his only protection. DS Matt Devlin is drawn to this damaged boy, saddened to see a life so doomed by circumstance, and furious that local dealer and gang leader Mark Ellis remains untouchable by the law.

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.

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.

A drug sting apparently goes bad resulting in the death of an informant. Devlin feeling something was not right about the situation digs into the past of the involved detective. Unfortunately this brings up a question of Brooks involvement in a drug theft from six years earlier.

When a teenager is murdered, the alleged killer's defence barrister has an audacious plan up her sleeve.

A convicted murderer who has been studying law inside is given the chance to appeal and chooses to represent himself in court against James Steel - his former prosecutor.

With scant evidence James Steel and Alesha Phillips find themselves up against a tenacious barrister defending an eminent doctor accused of sexually assaulting a patient.

Devlin and Brooks investigate the case of a 10 year-old girl, Jodie Gaines, who was kidnapped, and then found two weeks later dead, in a rubbish bin. A suspect is found but all is not as it seems.

When a teenage girl dies of a heroin overdose. Devlin and Brooks must find out how and why she came to be a drug mule.

Brought into A&E with flu-like symptoms and leaving in a body bag, Suzanne Morton’s death is treated as suspicious by DS Ronnie Brooks and DS Matt Devlin as they investigate a hospital department which has had three such untimely deaths within six months. With an extremely busy A&E ward the night Suzanne died, can our heroes find the killer before the killer finds their next victim? Senior Crown Prosecutor, Jake Thorne is pulled in opposite directions when the chief suspect in the case claims to have been framed for the murder by others within his department. With a conspiracy of silence permeating the hospital staff, it’s clear that there’s more to this case than meets the eye and only by penetrating the web of professional loyalties can the truth emerge

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

Maids find blood-stained sheets but no body in a hotel room, booked with a credit card stolen from businessman Charles Hutton by Rufus Barton, a school classmate and secret lover of Hutton's daughter Georgia.

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.