New Tricks

During a visit to his old neighborhood, Gerry meets a childhood friend who needs his help. Ralph Paxton's grandson, a talented young architect, died in a fall from an abandoned building; Ralph is convinced he was murdered.

When new witnesses come forward with information about the violent 2010 murder of a brilliant young doctor, the team uncovers evidence of her unhappy past: a possible stalker, a tutor who was suspiciously close, and the husband of a patient who died under her care.

Thirty years after the death of a suspected terrorist, the man's daughter receives an anonymous note claiming he was murdered. Clues lead the team to the Greenham Common antinuclear protests of the 1980s.

An 80-year-old woman with dementia walks into a police station to report the 60-year-old murder of her husband, a London bobby. The official report says he fell into the river, but the team's investigation uncovers old secrets.

When the discovery of a film critic's body in a sewer relates to the unsolved murder of an artist 20 years earlier, Sasha must work with her ex again. Ned's team tackles the latest crime, while UCOS digs into the cold case.

Traces of blood on a Roman sword are linked to an unidentified, headless corpse found in 2008. Taking up the unsolved case, the team enters the world of Roman battle reenactors.

After the 2009 death of a pub landlord in a fire, his live-in barmaid, an illegal Turkish immigrant, disappeared. When the Turkish woman is arrested, UCOS reexamines the events surrounding the landlord's demise.

When a teenage boy throws a brick onto a busy highway, DNA on the brick relates to the 2010 cold-case murder of a 55-year-old interpreter and chess enthusiast.

After an amateur sleuth is murdered, a photo of Danny is found at the scene. It turns out Danny was her friend, and he vows to find the killer. Clues lead to a 25-year-old murder and a trip to the countryside.

After a 30-year-old time capsule is unearthed, a cassette tape inside reopens the unsolved murder of a 16-year-old girl. Part of the tape includes a state secret: words from a speech written for the queen during the Cold War.