Waking the Dead

The case of an ex-soldier found dead with his skull nailed to the floor in 1948 has been reopened due to media attention and pressure created by his grandson. The team discover a similar murder dating back to the 1960s. Then the killer strikes again and a further victim is found nailed to the floor - this time in a nursing home for the elderly.

Having established that the killer's victims are the surviving members of the same WWII regiment, Boyd and his team must find the next possible target, but no one knows where he is. The motive for the murders becomes clear when they uncover the story of a brutal gang rape that led to a pregnancy and suicide.

Who is the skeletal inhabitant of a car abandoned in a disused garage, and what links him to the assassination of a government minister 25 years ago?

Boyd is told by an ex-army officer that the security services did not always play fair in Northern Ireland in the 1970s. When he discovers that his car has been bugged, he realises that things haven't changed. The ex-officer promises Boyd new evidence, but is killed in a car bomb before he can deliver it.

One of a pair of twins is admitted to hospital 15 years after they both went missing, but then he disappears again, and a murder takes place.

Mel is suspended from the case pending an inquiry, while Grace and Boyd have more questions for Roper, but the doctor's in no position to answer them.

Sam Jacobs is released from prison to start a new life. But then a man is murdered in the hostel where Sam stays and soon he is a suspect. But it looks as though he was in fact the intended victim. Sam has a hidden past which the team can only speculate about. On the surface he appears to be a devoted family man, so why does he have influential connections in the criminal world?

The team attempt to unravel the secret past of their guitar teacher suspect and his criminal associate. They finally uncover the fatal consequences of resigning from what was meant to be a lifetime job. Sam is brought in and he admits everything. He even volunteers to show Boyd where the gun is buried. But he has no intention of going back inside.

A sadomasochistic killer is on the loose. The killings are brutal, and the apparently homosexual victims have the word 'Sorry' carved in their backs.

The cold case team continue to try to unravel the macabre murders, and DNA evidence brings them towards their suspect.

A woman torches her home, killing her family. She claims that she was incited to commit arson by a mysterious figure called 'Shepherd'.

Boyd's team are sure the dark force cited by two homicidal psychiatric patients exists and continue to investigate the mysterious Shepherd.