Season 4

1. Messenger of the Gods

1978-09-07

Regan and Carter have a suspect in mind for the theft of a consignment of mercury, but he has an alibi.

2. Hard Men

1978-09-14

Regan and Carter are reluctantly teamed up with a Scottish officer.

3. Drag Act

1978-09-21

The Sweeney get incorrect information from informants, allowing a gang of villains to make off with some contraband alcohol.

4. Trust Red

1978-09-28

After a criminal dies during a robbery, Regan and Carter can find no leads.

5. Nightmare

1978-10-05

Regan's girlfriend has a nightmare that has similarities to a deadly incident.

6. Money, Money, Money

1978-10-12

Regan and Carter try to catch a man trying to blackmail a pools winner about the part he played in a robbery.

7. Bait

1978-10-19

Regan is determined to nail a modern-day Bonnie and Clyde.

8. The Bigger They Are

1978-10-26

Regan discovers that successful people will stop at nothing to keep skeletons buried.

9. Feet of Clay

1978-11-02

Regan is asked to help a criminal from his past, whose son has been kidnapped.

10. One of Your Own

1978-11-09

Carter winds up behind bars in an attempt to solve a jewellery robbery.

11. Hearts and Minds

1978-11-23

Regan and Carter get caught up in a plot to prevent a foreign head of state from getting his hands on an experimental drug to treat his heart condition.

12. Latin Lady

1978-11-30

A rich gynaecologist is attacked by a gang of villains who rob him of his suitcase.

13. Victims

1978-12-14

Carter discovers that an informant was involved in the shooting of a colleague.

14. Jack or Knave

1978-12-28

Regan finds himself in deep trouble when an allegation of corruption is made by the Police Complaints Department. A security van is robbed, and a guard identifies one of the robbers.