6x1 - Baptism

September 16, 1970

6x2 - Sunday, Sweet Sunday

September 23, 1970

6x3 - Safe in the Streets?

September 30, 1970

6x4 - Good Listener

October 7, 1970

6x5 - Time Expired

October 14, 1970

Missing! Ten small wooden boxes, each weighing 25 lbs., each worth five thousand pounds. Several people are interested in the location of these boxes.

6x6 - Lessons

October 21, 1970

6x7 - Without Favour

October 28, 1970

6x8 - Never Hit a Lady

November 4, 1970

6x9 - Its Ugly Head

November 11, 1970

6x10 - Who Wants Pride...?

November 18, 1970

Why should anyone steal a security van, disguise it as a plain van and drive it out to a deserted place in the countryside? And why blow a neat hole in it when there's nothing inside anyway? Could it be a dress rehearsal?

6x11 - Collation

November 25, 1970

A line drawn by time; a curious parallel; two thieves with a twisted sense of humour - would these be the ingredients of a recipe that would keep Barlow and Watt awake at night?

6x12 - Do Me a Favour

December 2, 1970

6x13 - Sweet Are the Uses of Adversity

December 9, 1970

DI Hawkins finds himself in the seat of authority - and very uncomfortable it is too. A dangerous and unidentified criminal is at large and CC Cullen demands crisp and confident action. Is Hawkins capable of responding to the challenge of adversity?

6x14 - Bearings

December 16, 1970

6x15 - A World Full of Rooms

December 23, 1970

6x16 - The Lie Direct

December 30, 1970

A parked car in a lonely road - but when it's in the same place two nights running Snow's curiosity is aroused.

6x17 - Ground Level

January 6, 1971

6x18 - Company Business

January 13, 1971

Sgt. Jackson is very good at statistics, but this time his conclusion is a matter of practical detection. But can he be right? John Watt doesn't think so.

6x20 - Final Score

January 27, 1971

6x21 - Something Big

February 3, 1971

Charlie Barlow is well known for playing his cards close to his chest. But this time he's on the receiving end - from DCS Allan.

6x22 - Games

February 10, 1971

6x23 - In the Public Gaze

February 17, 1971

As a result of going to the assistance of one of his officers, Chief Constable Cullen finds that he is in great need of assistance himself.

6x24 - Held for Questioning

February 24, 1971

6x25 - Black Equals White

March 3, 1971

6x26 - Cash and Carry

March 10, 1971