October 25, 2011
Hanssen is certain that his leadership is being undermined by a management consultant.

Episode 3
Shame
November 1, 2011
Michael returns to try and clear his name and win back the trust of his colleagues.

Episode 4
Under The Skin
November 8, 2011
Michael returns to try and clear his name and win back the trust of his colleagues.

Episode 5
Devil in the Detail
November 15, 2011
Sahira clashes with Hanssen's new theatre liaison manager while trying to help a patient.

Episode 6
No Shortcuts
November 22, 2011
Sahira and Greg agree to keep apart but Greg has to turn to her for help.

Episode 7
See You on the Ice
November 29, 2011
When an emergency trauma case is admitted, Sahira needs Hanssen's help.

Episode 8
The Hand That Bites
December 6, 2011
Hanssen and Sahira's professional relationship is tested when she confronts him.

Episode 9
Personal Injury
December 13, 2011
Malick's world is thrown into chaos when an ex-lover turns up at Holby.

Episode 10
Half Empty
December 20, 2011
Malick's personal and professional lives collide when he tries to save an ex-lover.

Episode 11
Wise Men
December 27, 2011
Elliot's Ukrainian trip takes a twist when he discovers the real reason for his visit.

Episode 12
When the Hangover Strikes
January 3, 2012
Eddi is fragile after a heavy New Year's celebration, but Luc is unamused by her attitude.

Episode 13
Hide Your Love Away
January 10, 2012
Emotions run high when Greg thinks Sahira has been in a car accident.

Episode 14
She's Electric
January 17, 2012
Greg is stunned when Sahira announces she is leaving. Hanssen alights on a new mission.

Episode 15
Butterflies
January 24, 2012
Sahira is torn between the two men in her life, while Ric clashes with Hanssen.

Episode 16
Here and Now
January 31, 2012
Greg tries to keep away from Sahira, but is upset when she reveals she is leaving Holby.

Episode 17
The Best Man
February 7, 2012
Michael's position as AAU clinical lead is challenged by a new consultant's arrival.

Episode 18
Awarded
February 14, 2012
Oliver diagnoses a rare condition. Chantelle's misinterprets Lleucu's good intentions.

Episode 19
What You Wish For
February 21, 2012
Greg's happiness is short-lived when he discovers the identity of the new anaesthetist.

Episode 20
Fight the Good Fight
February 28, 2012
Hanssen has a plan to secure Holby's future as a teaching hospital.

Episode 21
Fresh Blood
March 5, 2012
New trainee doctor Tara ruffles feathers with her over-keen attitude.

Episode 22
The Ties that Bind
March 13, 2012
Working with Greg and Rafi drives Sahira to breaking point.

Episode 23
Eastern Promise
March 20, 2012
Elliot takes action when equipment he wants to send overseas is set to be thrown away.

Episode 24
Got No Strings
March 27, 2012
Michael and Alex clash over a case, but can they work together to save their patient?

Episode 25
Throw in the Towel
April 3, 2012
Rafi finally confronts Sahira about Greg and Alex and Michael reach a tentative truce.

Episode 26
Equilibrium
April 10, 2012
Sahira has to make a choice between her career at Holby and her marriage.

Episode 27
Ribbons
April 17, 2012
Sahira bids goodbye to Darwin and Hanssen. Malick pushes the limits of his ability.

Episode 28
Half a Person
April 24, 2012
Malick faces up to his new responsibilities, both as a teacher and a doctor.

Episode 29
Coercion
May 1, 2012
Greg is forced to confront his past, and a complaint is made against Malick.

Episode 30
A Woman's Work
May 8, 2012
Ric and Keller's new consultant, Serena, clash over a patient's care.

Episode 31
Wolf's Clothing
May 15, 2012
Sacha encourages medical student Ella, refusing to accept that she is out of her depth.

Episode 32
Double Bubble
May 22, 2012
Holby announces itself as a transplant centre with a landmark operation.

Episode 33
Kids' Stuff
May 29, 2012
Malick finds himself going head-to-head against Serena over a particular case.

Episode 34
Last Day on Earth
June 5, 2012
Tara risks hers and Ollie's careers to ensure her patient gets a life-changing operation.

Episode 35
Unsafe Haven (1)
June 12, 2012
Luc and Eddi's fractious relationship comes to a head, and Ollie protects Tara.

Episode 36
Unsafe Haven (2)
June 19, 2012
Facing a hospital-wide outbreak, Luc is determined to make up for missing a diagnosis.

Episode 37
Long Way Down
June 26, 2012
Dan is torn between his father and his relationship, and Luc has a big decision to make.

Episode 38
Stepping up to the Plate
July 3, 2012
Michael is furious that he has to miss his son's birthday because of Luc's absence.

Episode 39
Only You
July 10, 2012
Can Tara convince Hanssen that she has a long-term future at Holby?

Episode 40
Last Man Standing
July 17, 2012
Tension between Ollie and Tara threatens to affect a heart-breaking patient case.

Episode 41
From Here to Maternity
July 24, 2012
When Mo goes into labour, she has to rely on support from an unexpected source.

Episode 42
Breathless
July 31, 2012
Tara and Ollie agree to keep things professional. Serena forges ahead with her initiative.

Episode 43
Crimes and Misdemeanours
August 7, 2012
Malick puts his career on the line when he overrides the wishes of a convicted murderer.

Episode 44
You and Me
August 14, 2012
Mo insists on getting back to work, but there is a shock in store for her.

Episode 45
The Devil Will Come
August 21, 2012
Michael must take desperate action with a patient's care as AAU reaches breaking point.

Episode 46
Taxi for Spence
August 28, 2012
Serena and Ric clash over a transplant case. Jonny tries to fix up a date for Mo.

Episode 47
I'm Sticking with You
September 4, 2012
Mo feels isolated by an ethical dilemma. Michael is tormented about a recent patient death

Episode 48
Devil's Dance
September 11, 2012
When drugs go missing Max is quick to cover - but who for?

Episode 49
A Crack in the Ice
September 18, 2012
Jac puts her career and health on the line; will she be able to swallow her pride?

Episode 50
Hold On Me
September 25, 2012
The report on Ritchie Mooney is due in; whose neck will be on the line?

Episode 51
Blood Money
October 2, 2012
Hanssen comes face-to-face with the man who has been threatening his life.

Episode 52
When Sacha Met Chrissie
October 9, 2012
With her wedding day looming, Chrissie starts to get cold feet.