New Tricks

With evidence suggesting that his cosh was the murder weapon and a trumped-up assault claim from Sainsbury things look bleak for Gerry but DAC Strickland is sure of his innocence and lets him go. With dangerous men in pursuit Gerry goes on the run with Danny, to whom he relates that Ackroyd was as corrupt as any of the other suspects and was in Chapman's pay. They call on Tommy Naylor, who directs them towards honest Ted Case, another retired officer and he gives them evidence of Ackroyd's involvement with Chapman. This in turn leads Gerry back to Bryant and McCabe and arrests are made, followed by recrimination, chicanery, a funeral and a departure.

The team is less than pleased when arrogant civil servant Stephen Fisher coerces them into investigating the murder - in 1851 - of Abigail Padua, a mathematical expert whose death led to the collapse of her family business and a widespread financial crisis. With no living witnesses and a different geography to the time the team must pore over the original statements to prove that the killer was a witness who lied to the police. However, they, with Strickland's backing, have another mystery on their hands - Fisher's obsession with cracking the case, which itself could have far-reaching effects in the modern business world. Jack however is able to thwart Fisher before he leaves the unit for good to spend his last days in France.

Seventeen years earlier Sandra's first case involved the disappearance, never resolved, of music student Lesley Hewitt and now Lesley's sister Emma has been sent a photo of Lesley walking in a park just before she vanished. Sandra believes that a jogger in the picture was a serial killer responsible for the deaths of other young girls, possibly working with a female accomplice as Emma says that Lesley was offered a gig before she vanished. Ex-model Annie Banks and bookshop owner Stuart McKelvie are also in the photo, taken by Greg Banks, a recently deceased photographer whose studio contains several pictures of women who were abducted and killed. Annie and Stuart initially claim not to know each other but Sandra breaks down their stories and discovers that Annie knows who the jogger is. After concluding the case Sandra leaves UCOS to work with Max Clement.