A case of mistaken identity provides tragic circumstances when a hit goes wrong; Regan and Carter manage to break the hit-and-run ring, and then try to stop another accident.

Chief Inspector Haskins is framed for corruption while Regan and Carter investigate a spate of break-ins. Is there a connection ?

Regan and Carter investigate an art deal that is more than it seems, and ends up in a wasteground shoot out.

How will new recruit Bob Hargreaves cope with an investigation into a violent burglary?

Regan and Carter go undercover to assess corruption charges made against CID officers.

An armed robber is sprung from jail and comes looking for Regan.

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

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