Season 4

Cade is the subject of public outrage after two terrorist bomb blasts, and, as if that were not enough, his girlfriend leaves him.

Davies discovers that a bogus doctor has been using NHS equipment to carry out his private business. Cade has to organise a massive security operation to protect a royal visitor.

Stewart is disillusioned and frustrated when she fails to win the promotion for which she has been fighting.

Impressed by her diligence, Cade agrees to employ pushy PR exec Alison Dell in an attempt to boost the force's image. However, they soon find that their working relationship spills over into their private lives.

Hilary Scott is attacked by anti-abortionists on her way to the clinic. Terrified by their campaign, she goes home to rethink her decision.

Cade causes controversy when he announces a radical plan to decriminalise certain drugs for an experimental trial.

Cade's life is jeopardised when a visiting Italian judge falls victim to an assassination attempt.

Tensions between the police and the Crown Prosecution Service mount following the acquittal of a child murderer.

A group of neo-Nazis plan to raid the home of a local councillor.

Cade is forced to defend his team when an undocumented immigrant dies during attempts to detain him.