2.3 – Special Relationship

First broadcast 16/17 September, 2002.

Problems and conspiracy theories abound when the team re-investigate the murder of Katherine Reed, a case previously handled by one of Boyd’s old flames, DI Jess Worrall.

Notable guest stars: Corin Redgrave, Patricia Hodge, Ruth Gemmell.


The one where… Boyd shows off his tap-dancing skills and we meet his ex-girlfriend, Jess Worrall (played by Ruth Gemmell, who appears twice more in later episodes as Linda Cummings).


2.4 – Thin Air

First broadcast 3/4 November, 2002.

Joanna Gold disappeared in 1989, and when fresh evidence is discovered leading to a new police investigation, dark family secrets are also revealed.

Notable guest stars: Roger Allam, Cherie Lunghi, Sophie Winkleman.


The one where… Boyd and Spencer play squash, and we discover Spencer was a party animal in back the ’90s.

3.1 – Multistorey

First broadcast 14/15 September, 2003.

A gun connected to the Whitewater massacre is found on waste ground, leading to a new investigation, but one of the victims, Nick Patterson, was an old friend of Boyd’s…

Notable guest stars: Jason Hughes, Robert Pugh, Sean Pertwee.


The one where… Boyd punches DS Ben Jones from Midsomer Murders (Jason Hughes, playing Andrew Cross).

3.4 – Final Cut

First broadcast 5/6 October, 2003.

Four bodies are found in a house Spencer used to live in as a child. As the team investigate, family secrets are revealed alongside evidence of gangland violence.

Notable guest stars: Ken Russell, Maurice Roëves, Nicholas Beveney.


The one where… Spencer is reunited with the father he hasn’t seen since he was a boy.

4.3 – Fugue States

First broadcast 25/26 July, 2004.

The Murphy twins went missing in 1988, and when one is found suffering from amnesia, the team investigate their original disappearance – a case that proves to be distressing for Mel.

Notable guest stars: Sean McGinley,  Joe Armstrong.


The one where… we find out that Mel was removed from her birth mother by Social Services and then adopted.

5.2 – Black Run

First broadcast 25/26 September, 2005.

The team reinvestigate the case of Eddie Vine, an imprisoned ex-police officer Boyd arrested for murder. As suspicions start to rise in the team, Boyd himself is arrested for a crime he has no memory of committing…

Notable guest stars: David Hayman, Diane Parish, Connor McIntyre.


The one where… Boyd gets kicked in the head, and then has his drink spiked with a date rape drug.

5.4 – Straw Dog

First broadcast 9/10 October, 2005.

Grace’s past comes back to haunt her when Tony Greene launches an appeal against his murder conviction – the one she helped secure in the early days of her forensic career.

Notable guest stars: Tom Ellis, Paul Freeman, Angela Bruce.


The one where… the ’80s police investigation is shown in multiple flashbacks, significant details of Grace’s past are revealed including her affair with Harry Taylor, and the team receives a jar full of severed human fingers.