The Professionals

Don't drink the water. Nesbitt is threatening to poison London's water supply - and this chemical expert with a grudge could do it too. Can Bodie and Doyle find him before people start dying?

Pillow talk. The KGB have found a way into British politics by exploiting a young girl's links to a future Prime Minister. Fortunately CI5 are put onto the case by an old flame of Doyle's.

You don't get a prisoner released without pressure. And the brother of a criminal has found a way to apply a lot of pressure. With the kidnapping of the Home Secretary intended as a bargaining chip, it's down to CI5 to stop him: an act which requires one of the team to put himself in very real danger.

Beware Greeks bearing huge sniper rifles: CI5 become aware that an assassination attempt is about to happen somewhere in Britain - but who is to be killed, and who are the killers?

Careless talk costs lives: Following the assassination of a US politician visiting Britain, CI5 are dismayed when the press print the names of the witnesses. Soon it's a race against time to protect these innocents before the assassin kills again.

The boys are back in town: A series of violent bank robberies herald the return of an army squad to Britain, their skills available to the highest bidder. But CI5's mission to track them down forces loyalties to be questioned: for William Bodie served with these me.