New Tricks

When a pathologist is suspended on grounds of negligence UCOS are forced to reopen a case of a palaeontologist's mysterious death.

DNA evidence taken from a suspect in a robbery proves the man innocent, but also incriminates him in a 15-year-old murder case.

The UCOS team are drawn into a world of immigration, Albanian gangs and family feuds when they reinvestigate the death of an unidentified man.

The UCOS team reinvestigates a highly sensitive case when new information links an unexplained death to a series of drug rapes in East London.

A psychologist arrives at UCOS to conduct a study on older men in the workplace and also has a personal case for the team to look into.

Some past memories and feelings are stirred up when Detective Superintendent Sandra Pullman is reunited with an old flame, DCI James Larson.

The UCOS team reinvestigate the disappearance of a scientist when his wife receives a number of anonymous emails claiming to know his whereabouts.

The UCOS team reinvestigate the murder of the leader of a notorious criminal motorbike gang when they receive new evidence from an unlikely source.

UCOS reinvestigate the murder of an unidentified male seven years earlier when the victim is named on a website about unexplained disappearances.

UCOS reopen the case of zoo keeper Zac Halsey who was found mauled to death in the tiger enclosure at Harefield Zoo in 2006.