First broadcast 7/8 January, 2007.
The team investigate the connection between a badly-beaten man abandoned at a hospital, and a young man who drowned in concrete sixteen years previously.
Notable guest stars: Tony Scannell, Daragh O’Malley, Gabrielle Reidy.
The one where… Eve replaces Felix, and the team investigate prize-fighting, suspicious nuns, and two families of Irish travellers.
First broadcast 14/15 January, 2007.
Trying to avoid a diplomatic incident, the Foreign Office task the CCU with finding the skull of the Mahdi, which was taken as a war trophy in the 19th century. In a parallel investigation, the team try to identify the murderer of Omar Jaffiri, who was allegedly tortured on behalf of the British security services.
Notable guest stars: Graham Crowden.
The one where… everyone spends an awful lot of time looking at skulls.
First broadcast 21/22 January, 2007.
The discovery of a pair of sexually conjoined skeletons killed by a single gunshot leads the CCU both to Dublin, and into the shadowy world of banking and Opus Dei.
Notable guest stars: Peter Capaldi, Terence Harvey, Catherine Walker.
The one where… Boyd takes a shine to journalist Lisa Tobin, and Peter “Doctor Who” Capaldi’s character takes an unhealthy interest in Boyd and Grace.
First broadcast 28/29 January, 2007.
James Jenson has been released from prison, and the team hurriedly try to determine if he’s a dangerous serial killer, or merely an unlucky scapegoat who’s always been a victim.
Notable guest stars: Nicholas Beveney, James Fox, Jemma Redgrave.
The one where… the team investigate historical abuse at a children’s home, Spencer gets beaten up, and Boyd fails at CPR.
First broadcast 4/5 February, 2007.
When Daniel Lennon absconds from a secure hospital and reveals the location of the body of a man killed in 1967, the team find themselves investigating both his original crimes and a ’60s hippie therapeutic community overseen by Dr Raymond Parke.
Notable guest stars: Miles Anderson, Jill Baker, Richard Johnson.
The one where… Boyd and Grace have a huge argument that leads to the latter temporarily leaving the unit, Boyd gets stabbed in the hand with a pen, and there are lots of flashbacks to the ’60s.
First broadcast 18/19 February, 2007.
Boyd is sent a dagger from New York, which relates to a case Mel was looking into just before she died. As they investigate a murder from the ’40s, the team are temporarily joined by Sarah, a Mossad agent who tracks Nazi war criminals.
Notable guest stars: Michelle Forbes, Eileen Atkins.
The one where… the wartime plot is shown in black and white flashbacks, and Boyd gets romantically entangled with Sarah.