DC Morgan receives information that a big art robbery will take place. The squad acts... but so does the thief.

Barlow is enjoying a pint at the pub when Watt's girl friend, Dr. Jean Morrow, tells him about an old lady who has been brutally attacked for the sake of a few pounds. Jean's story shocks Barlow into involving the squad in immediate action.

When the head of a successful firm dies there is always someone waiting to step into his shoes. In this case the dead man's business venture is believed to be crooked and DS Hawkins is closely concerned as to who will fill his place.

A race meeting at Chepstow; and incompetent amateur pilot; a lonely field near Wyvern; why is Barlow interested in these three things? Who is it that Barlow wants to set a trap for? The answer lies in unfinished business from Barlow's past. Will he ever complete it?

A prostitute is found murdered in a quiet backwater quay at Wyvern. Who is the killer? Barlow and his team make every effort to find out.

When Harry Hawkins and Barbara Allin visit a gambling joint it is not just for the purpose of spending their own money. Their main interest is in the easy money that flows, and the club owner, Dino Frankitt, who has the reputation of making HIS easy money in devious ways.

When a crime occurs on the doorstep of Headquarters the local force thinks it's funny. But Barlow is not amused. He is aware the incident could be a prelude to a much bigger crime - but what? And why is John Watt even less amused than Barlow?

What is a criminal like Jack Carter doing in Wyvern? Barlow hopes to find out by surveillance and is furious when Digby inadvertently makes the squad's interest apparent.

Barlow and watt travel to Thamesford and back - but not together - in pursuit of important changes in their careers. While they wait to hear the results of their journeys they join forces again in pursuit of one more criminal.

Why is DS Allin so interested in the leisure activities of the elite of Wyvern? And why does a car involved in a minor accident unaccountably burst into flames? The subsequent enquiries are not to Watt's liking.

Barlow's first day at Thamesford is rounded off with a telephone call that involves him in his first major investigation as head of C.I.D.

Routine enquiries into a series of minor break-ins become a major hunt for a dangerous criminal.

A worried barman asks John Watt why a detective constable is asking questions about him. Watt makes some alarming discoveries about the constable in question.

A whisper from the north of England leads the Task Force to Eastcote Docks. A domestic dispute takes them to the nearby caravan site at Bathgate. But what is the link between the two incidents?

Barlow is pursuing the hint of an armed robbery. Hawkins and Jackson are tackling another in a series of Thursday night thefts. But there is something different about this particular Friday.