Crime drama based on the hit US series `Law and Order'. DS Ronnie Brooks and DS Matt Devlin must investigate when the evacuation of a London hospital leads to the discovery of a tragic death. The trail takes them to Kings Cross, where redevelopment of the area is affecting a number of local residents - but could any of them be involved?

DS Ronnie Brooks and DS Matt Devlin investigate the murder of a teenager who was brutally beaten to death. While the police face a tangled web of family loyalties around the victim, Crown Prosecutors James Steel and Alesha Phillips find themselves up against an audacious defence barrister who may be seeking to change the nature of the British legal system.

When former vice cop Frank McCallum is discovered beaten to death in an underpass, DS Ronnie Brooks and DS Matt Devlin find their investigation going in unexpected directions. There are more surprises in store for Crown Prosecutors James Steel and Alesha Phillips when the accused argues that they acted in self defence. What really happened to McCallum?

DS Ronnie Brooks and DS Matt Devlin are forced to reopen a contentious murder case, and their investigations threaten to unravel James Steel's prosecution of Luke Slade eight years before. Slade, who has been studying law during his time in prison, is given leave to appeal. When he opts to represent himself in court, the case becomes less of a legal appeal and more of a personal vendetta between Slade and Steel.

The remains of an eight-year-old boy are uncovered, twenty-five years after he was reported missing. DS Brooks and Devlin re-interview the man arrested during the original enquiry. The boy's childhood friend reluctantly agrees to undergo EMDR therapy and appears to recall the events of the night that Tommy disappeared, but George Castle is sceptical about the value of her recovered memories.

When an arson attack on a Turkish club claims 17 lives, DS Ronnie Brooks and Matt Devlin are under pressure to discover just who was behind it. Their search is complicated by a trail of false identities, and the devious method of starting the fire, but when the arsonist is finally identified, James Steel and Alesha Phillips struggle to build a case. They begin to question whether the attack was really racially motivated.