The team is shocked when Leo Dalton's wife and daughter are killed when a fancy sports car careens out of control and smashes into a café. The police are puzzled by the cause of the crash but believe the driver may have been involved in a identity theft ring when they find several several passports and ID cards in the vehicle. Meanwhile, Nikki must perform urgent autopsies on two bodies found floating in the river.

　　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.