As Leo's replacement Thomas Chamberlain arrives Nikki investigates the murders of Rachel Freedman, shot in the head, and her little autistic son Nathan, who was poisoned. Nikki rejects policewoman Anne Burchett's theory that Rachel killed them both but is perturbed when an impostor, claiming to be Rachel's sister, visits the morgue. At the same time the disfigured corpse of Eva Liron is discovered, killed with the same poison as Nathan. She had been the nanny to French hot shot footballer Isaac Dreyfus and was planning to blackmail him over a sex tape of them both. Jewish Isaac is a controversial figure due to his anti-Muslim sentiments but he denies ant part in the murders. Then another victim, Isaac's agent Mousa, is discovered dead.

　　Following a court appearance for drunk driving, Leo is required to perform unpaid work as a punishment, assisting AJ, a community worker on a run-down,largely black-occupied housing estate in South London. AJ is hoping to divert boys away from crime by encouraging them to do sports, and, though initially dismissive of Leo as a white intruder, comes to respect him after he has saved the life of Errol, a former gang member now anxious to keep his little brother Levi out of trouble. Errol has been stabbed in the leg by members of a gang from a rival estate and Leo stops him from bleeding to death. Earlier in the week a young girl called Shana Block was stabbed to death at a funfair and her murder recorded on a mobile phone. As Shana lived on the estate police sergeant Wallace involves Leo as a go-between with the suspicious residents. Also on the scene are Harry and Nikki, the latter dating Ryan, a young Scottish paramedic she met when called to the scene of Shana's death.

　　A Time to Heal -The team is called out to Northern Ireland to investigate the bodies of two men killed by paramilitaries twenty years ago. For Sam, it is a case that is soon to turn personal…
　　Death by Water - Tensions are running high in the ‘leaderless’ team as Leo and Harry clash over an investigation into an outbreak of breathing difficulties among children on the South Coast.
　　Nowhere Fast - When members of a race horse owning syndicate are killed in a helicopter crash, Leo and Harry investigate – and an unexpected new face at the mortuary lends a helping hand.
　　Body 21 - Approached by a group of survivors from a recent train crash, the team investigate the wreckage and a new mystery – the identity of the unidentified body 21.

　　Answering Fire - In a suspected terrorist attack on a London hotel a government minister is killed. As Sam and the team investigate the case, old friends and government officials soon muddy the water.
　　Fatal Error - When two brothers are found dead in a police cell, Sam and Leo find themselves on opposing sides of an Old Bailey court case – then a 13-year old murder resurfaces, questioning Sam’s findings…
　　Running on Empty - When a young woman falls to her death, the police believe she took her own life. When Sam, Leo and Harry are called in, their investigations soon unravel a tragic story.
　　Beyond Guilt - As Sam investigates a brutal murder, she is also asked to investigate a professor linked to the case and discovers the case is a lot more complicated than first appearances suggested.

　　Sam's cases involve a series of revenge killings by a former Auschwitz prisoner; the mysterious deaths of teenage girls killed 15 years apart in Norway; a suspicious suicide and a beautiful Nun in a convent by the sea - very different stories, all employing Sam's expertise to the maximum.

　　一個輕松的環(huán)境喜劇，汪明荃在劇中一人分飾兩個角色，她們是一對性格各異的孖生姊妹。姊姊是個做新娘禮服的設計師，思想開放，打份入時，因工作關(guān)系，認識了有婦之夫的牙醫(yī)，公然與他親熱，其間制造不少笑料與誤會；而妹妹任職于牙醫(yī)診所護士，為人嚴謹，思想保守，甚反對姊姊與牙醫(yī)相戀，尤其是她跟牙醫(yī)的妻子是好朋友，處在這個夾縫中，左右為難。