The police investigate a suspicious fire that resulted in the passing 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.
Based on the wildly successful American show of the same name, "Law & Order: UK" follows a group of detectives and prosecutors as they work together to solve crimes and bring perpetrators to justice in London. Ronnie Brooks is a cop from the East End with a tough past and a big heart. His partner, Joe Hawkins, is a young officer who has come straight from child protection to the cuddle squad. Their boss DI Wes Leyton has been through it all and knows the only way to change things is from the inside.
On the side of the court is Crown Prosecutor Jacob Thorne, a gifted and uncompromising criminal prosecutor. His second chair is defence barrister turned Crown Prosecutor Kate Barker who is fresh from the more lucrative side of the courtroom. With Henry Sharpe as their wise and pragmatic boss. The two teams encounter never-ending action in their quest to keep London safe.
Employing the original series' iconic two-part structure that focuses first on the investigation of a crime at the police level and then shifts in its second half to the prosecution of the suspects, Law & Order: UK approaches the format and characters from a uniquely English perspective. The episodes are based on scripts and episodes of the parent series.