The team investigate the murder of a policewoman 17 years ago, but what is Sandra's connection, and what secrets from her days at Hendon are revealed?

The team investigate the murder of a young peace protester, killed near a nuclear base in 1984. Was it a cover-up?

A 10-year-old boy is killed on a golf course. Some 20 years later, the team investigate but face obstruction from a snobbish golf club committee, who struggle to keep women out of the bar and to protect the memory of a Falklands war hero.

The team investigate the disappearance of an attractive young mum and her six-month old son in the 1970s. They also have to submit to a physical and psychological assessment.

Jack Halford hopes a clairvoyant will put him in touch with his late wife. Instead he is contacted by a girl who disappeared twenty years earlier.