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

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

Regan is assigned to ensure the safe shipment of a gold bullion consignment.

Regan and Carter go after Billy Medhurst, implicated in a robbery that resulted in a policeman being shot and crippled. But is the past clouding Regan's judgement?

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

Regan gets involved in gangland warfare following the death of one of London’s leading villains.

Carter's girlfriend asks him to find a missing villain, but Regan is suspicious.

Regan must find the source of illegal guns that are flooding the market.

Regan is fitted up by an ex-con to get his daughter's dodgy boyfriend out of the picture.

While in prison, inmates Titus Oates and Colly Kibber plan a robbery.

Regan knows the identity of a robber, but has a difficult time proving his guilt.

Regan gets involved in a secret government deal, thanks to Shebbeq, a Turkish cop.

Regan tries to help out the son of a friend when the lad is implicated in an assault.