Season 4

01 Messenger of the Gods Episode 17th September 1978 Regan and Carter have a suspect in mind for the theft of a consignment of mercury, but he has an alibi. 02 Hard Men Episode 214th September 1978 Regan and Carter are reluctantly teamed up with a Scottish officer. 03 Drag Act Episode 321st September 1978 The Sweeney get incorrect information from informants, allowing a gang of villains to make off with some contraband alcohol. 04 Trust Red Episode 428th September 1978 After a criminal dies during a robbery, Regan and Carter can find no leads. 05 Nightmare Episode 55th October 1978 Regan's girlfriend has a nightmare that has similarities to a deadly incident. 06 Money, Money, Money Episode 612th October 1978 Regan and Carter try to catch a man trying to blackmail a pools winner about the part he played in a robbery. 07 Bait Episode 719th October 1978 Regan is determined to nail a modern-day Bonnie and Clyde. 08 The Bigger They Are Episode 826th October 1978 Regan discovers that successful people will stop at nothing to keep skeletons buried. 09 Feet of Clay Episode 92nd November 1978 Regan is asked to help a criminal from his past, whose son has been kidnapped. 10 One of Your Own Episode 109th November 1978 Carter winds up behind bars in an attempt to solve a jewellery robbery. 11 Hearts and Minds Episode 1123rd November 1978 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 Episode 1230th November 1978 A rich gynaecologist is attacked by a gang of villains who rob him of his suitcase. 13 Victims Episode 1314th December 1978 Carter discovers that an informant was involved in the shooting of a colleague. 14 Jack or Knave Episode 1428th December 1978 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.