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.

Ronnie and new partner Joe Hawkins, who has come from the child protection unit, investigate a gruesome double murder where the victims' hands and teeth were removed.

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.

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?

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

Was the arson attack on a Turkish club claiming 17 lives racially motivated - or something even more sinister? James Steel and Alesha Phllips struggle to build the case.

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

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.

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.

A body is found at a London hospital, but can the police and the Crown Prosecutors bring the person responsible to justice?

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

A police officer is killed in a shoot out with a drug dealer. Based on the testimony of another dealer, Brooks and Devlin must determine whether back up was slow to arrive and left the officer to die because he was gay.

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.

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?

A judge is badly injured when she is shot during what appears to be a car robbery. The investigation reveals that a hitman had been hired to kill her.

The police investigate a suspicious fire that resulted in the death of 13 year-old Ian Parnell. His mother Megan managed to escape but the pathologist confirms that Ian died of smoke inhalation. The boy was severely disabled and unable to care for himself. They follow several false leads including an absent father who is behind on his support payments and a couple of neighborhood lads who were known to have harassed the dead boy. In the end, the evidence points to the mother. In court James and Alesha come up against a barrister who refuses all reasonable offers to settle the case. His disdain for his client leads him to mount a series of increasingly ridiculous defenses. When the truth finally emerges, the Crown prosecutors face a moral dilemma.

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.

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.

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.

The mystery surrounding the stabbing of student, Archie Rahman, has our cops chasing their tails when the only clue they have to go on is a library book checked out on the day of his murder. Two students connected to the book have given an alibi for each other but one of them is lying and it's down to our cops to find out which one. When the perpetrator eventually confesses and claims to have acted in self-defence, Alesha is forced to face past demons. It's a delicate balancing act for James who is tasked not only with prosecuting the offender but also with defending a dead victim. Unless the truth of what happened that day is uncovered, a murderer could walk free or an innocent victim be wrongly convicted.

For two years, Stephanie Blake (Michelle Bonnard) has been stalked by a man who calls himself 'Giovanni'. She knows nothing about him but he knows everything about her right down to the finest details of what she keeps in her bathroom cabinet. Over time, his e-mails and calls have become more intimidating but without an actual physical threat against her, there is very little the police can do for Stephanie. After initial investigations lead nowhere, the police are forced to abandon the case. Then something happens which shakes our police heroes to their very core. What should be a straightforward prosecution becomes complicated when a key piece of evidence is excluded. Up against Defence Barrister Evelyn Wyndham (Anna Chancellor), James has his work cut out for him. When one of the cops becomes a key witness for the prosecution, the question arises of whether his motivation is genuine or borne out of guilt. Will he perjure himself in order to get the right result?