Ric arrives in prison to begin his sentence. A popular prisoner takes him under his wing, but Ric starts to question who he should trust on the inside.
Sacha finds his allegiances tested as he struggles to judge whether his patient can be trusted, and Jac is keen to prove she is back on form.
Essie struggles to use her head over her heart as she gets involved with Gaskell's trial. Oliver is transferred to AAU for a change of scene.
Torn between guilt and duty, Hanssen is pushed to the brink, Jac turns to an old friend for support, and Lofty is thrown when an unexpected patient turns up on Keller.
The Clinical trial is heating up and it is time for Gaskell to live up to his reputation, while Nicky tests Sacha's patience in a bid to prove her abilities .
Hanssen steps down as CEO, with Serena agreeing to take over temporarily. When Ric is admitted to Holby, Serena and Donna treat the injuries he sustained in prison. Distressed by Ric's situation, Serena investigates what happened the day Elaine Warren died.
Oliver's physiotherapy is cut short when his therapist collapses, triggering his surgical instincts. As he attempts to diagnose her and other patients, Dom, Lofty and Roxanna try to temper his expectations. Oliver starts to wonder if he can still be a doctor.
Jac must locate the rare vinyl she took from Raf's collection before Fletch purchases a replacement. This suspicious behaviour leads Frieda to uncover the true nature of Jac's motivations. Knowing Jac may have feelings for Fletch gives Frieda an opportunity to needle her mentor.
A leaking bullet is poisoning Oliver's brain and must be removed; can Roxanna convince him to risk another surgery? Fletch turns a supposed intruder into a patient.
A hungover Nicky must cope with an overbearing new registrar. Fletch and Jac are thrust together on an overnight transplant case.
Roxanna pitches an experimental treatment that could help Oliver recover. However, with acting CEO Serena reluctant to commit, can Roxanna convince Hanssen to return? Meanwhile, Dominic tries to help a deeply worried Lofty plan for Sheilagh's future, and it remains to be seen whether Frieda will continue to help Jac when her mentor's pain reaches breaking point.
Gaskell fights to protect his trial and save his patient, and Serena is determined to find a solution as she begins to fear that Ric is losing hope. Meanwhile, Jac returns with a spring in her step, but will the secret to her new happiness be discovered?.
Roxanna tries to cure Oliver, but in the process opens old wounds. Dom and Lofty find themselves at odds over Sheilagh's care. Donna and Fletch race to save Ric.
The events surrounding Elaine Warren's death are relived in court. With new revelations emerging, can Ric fight for freedom? Desperate to no longer be Roxanna's pet patient, Ollie pushes himself to the brink. But what future awaits him on the other side? Jac has eyes for Fletch, but when things take a turn for the worse Frieda is the one she turns to for help.
Ollie refuses to relinquish his determination to become a surgeon once again. But when a memory resurfaces, he finally sees a new way forward. Unable to shake the guilt over Fiona's death, Essie is hell-bent on uncovering what went wrong. With Jac gone and Fletch wanting answers, Frieda faces an interminable night shift on Darwin.
Roxanna questions Gaskell's motives when he takes on a controversial new case. Meanwhile, Fletch clashes with new CEO Abigail over a vulnerable patient and challenges her to prove she's a worthy successor to Jac Naylor.
A revelation about Gaskell forces Roxanna to choose where her loyalties lie. Still on probation, Ric risks his job to save a familiar face, and a secretive young patient causes Fletch to question Abigail's priorities.
Frieda forces new trainee Nicky to question what kind of doctor she wants to be. Meena puts her friendship with Ms McKendrick on the line when a chance to impress Gaskell arises. Serena tests Xavier's mettle, putting him in charge of Sheilagh's recovery.
Dominic is confronted by a ghost from the past, and Sacha wants to be the perfect boss when Hanssen returns to work under his leadership. Meanwhile, dangerous old flame crashes back into Frieda's life. Will she break the rules to help him?
An exhausted Fletch clashes with Abigail when an unexpected visitor turns up on the ward, and personal issues distract Nicky from her big case. Xavier's patience is tested by a tricky patient when details from his past come to light.
As the pressure builds from all sides, Gaskell takes a huge risk to save his trial. An unwelcome discovery threatens Dom's career and his relationship with Lofty. Elsewhere, an angry relative puts Fletch's professionalism to the test.
Healthy competition turns sour when Meena and Nicky treat the same patient. Meanwhile, Frieda finds an unexpected friend in Fletch when matters of the heart push her out of her comfort zone, and Serena takes an undesired approach to Jason's impending fatherhood.
Frieda has to decide what to do when Roman crashes back into her life, and a withdrawn Dom's plans for a quiet night are scuppered. Determined to shake up his life, Sacha seeks out new experiences - with surprising results.
With Fletch and Abigail's relationship still a secret, Fletch is thrown when Jac suddenly arrives on Darwin, however complications arise when Fletch accepts Jac's offer of an after-work drink.
While trying to prove herself, Meena uncovers disturbing news that could spell trouble for Gaskell. Bernie returns to bring Serena home, but is Serena willing to leave Holby behind for good? And Fletch questions if he's ready to commit to a proper relationship with Abigail.
A split-second mistake brings Nicky a whole lot closer to Zav than she bargained for. Meanwhile, a troubling discovery causes Roxanna to question her loyalties. And Dom is forced to make a choice between sacrificing an opportunity and letting down Lofty.
The party celebrating 70 years of the NHS is put on hold when a major incident pushes Holby to the limits. Serena is reminded of a patient she saved many years ago - with the odds stacked against her, and withRic's help, can she do the same again?
Torn between a chance to make history and her conscience, Roxanna faces a tough decision. Will she cross the line?
When nothing else seems to be going Sacha's way, he tries his hand at a new romance. Meanwhile, tensions rise as Meena moves in on Nicky's turf up on Darwin. And unconvinced by his slippery charm, Donna puts Zav to the test.
Jac is back on form after her surgery and determined to prove she is a doctor and not a patient. Dom and Lofty find themselves at cross purposes, which puts their future in the balance. Elsewhere, Essie sees Holby afresh through the eyes of a patient.
A stressful day for Fletch gets worse when one of his kids is injured, and then a face from his past turns up. Meanwhille, Hanssen attempts to express his feelings to Roxanna, and Serena and Ric decide to teach Nicky and Meena a little humility.
Fletch clashes with estranged father Steven when Evie demands they let him back into their lives, while Essie is determined to help Josh after discovering he was an applicant for Gaskell's Project Laszlo. Dominic fears for his compatibility with Lofty after a contagious incident on AAU shows they are not thinking the same way.
Roxanna questions Gaskell's leadership when his focus seems off. Can they work together to save a patient's life, or is the the trust between them fractured forever?
A conflicted Essie faces a dilemma when trial patient Josh's condition deteriorates, and Donna clashes with Xavier when she accuses him of not taking their beauty business seriously. Elsewhere, Meena tries to stay positive when her day goes from bad to worse.
A special episode focusing on male mental health. Long-serving Dr Sacha Levy struggles with his emotions after a devastating surgical outcome for a favourite patient. The episode departs from Holby's usual format, exploring previously shown scenes from a new perspective, as the shattered consultant looks back at a testing year at Holby.
Hanssen tries to bury himself in his work, but when Gaskell makes a move he hadn't bargained for, he can no longer ignore his conscience. Fletch is burning the candle at both ends, leaving Evie to pick up the slack. Desperate to make things right with his daughter, Fletch faces a tough decision, while an isolated Meena turns to an old flame for comfort.
An unexpected new friendship helps Frieda find her way and Meena hits a new low, finding herself friendless and under mounting pressure from all directions, while tensions between Roxanna and Gaskell finally come to a head.
While scrambling to save a life, Hanssen and Gaskell recall the earliest days of their friendship, when a fateful encounter with a wide-eyed but driven Roxanna changed the course of all their lives forever. Under increased scrutiny and immense pressure, Gaskell wrestles with his conscience.
Hanssen holds a fretful bedside vigil at the hospital, while Gaskell wrestles with his conscience over what he's done. Fletch is missing Evie and angrily blames Steven for pulling his family apart. Sacha tentatively steps back into Holby after time off for his depression - and finds an unexpected source of support in Frieda.
As the hospital reels from tragic news, Sacha takes on a marathon operation, but Dom is concerned that he is attempting to do too much too soon. Serena is pulled in all directions when Leah, a new junior doctor, struggles with a problematic first patient, while Fletch feels he should spend some quality time with his dad after Steven's heroics while helping Mikey.
Xavier's secrets are laid bare when his wounded grandfather arrives on AAU. Gaskell's increasingly erratic behaviour puts a patient at risk, leaving Hanssen troubled. Serena tries to put some professional distance between herself and Leah.
With Hanssen inching closer to the truth, Gaskell fears exposure. Jac discovers Steven has been keeping a potentially life-changing secret from Fletch, and with Xavier continuing to distance himself from friends, Donna tries to repair his broken bonds with his family. But does Xavier really want her help?
Fletch finally confronts Jac over their feelings for each other. The death of a patient leads Jason to make a life-changing decision. Eager to protect his relationship with Dom, Lofty hides his true feelings about their future.
A tricky case causes Xavier to lose his cool with Jason, while Jac and Fletch do their awkward best to avoid each other. Elsewhere, Lofty, Meena and Leah confront their problems after being thrown together.
The lines between past and present blur as Hanssen tries to bring the hospital back from the brink. Gaskell's descent into chaos leaves Jac fearing for her life, and Meena's crusade for truth faces a set-back when she loses the only ally she had left.
With Gaskell's dastardly invention inside her, Jac fears for her life - but the only one who can remove this ticking time bomb is the man himself. Can she convince him to try? Meena throws caution to the wind and outs Gaskell's nefarious deeds, enlisting Essie's help in unravelling his web of lies.
Fletch and Sacha race against the clock, even calling on some familiar faces for help in Jac's hour of need. Meanwhile, Hanssen is determined to bury Gaskell's legacy, but is forced to unlock its final secret. And Donna is driven to make sense of her relationship with Xavier when he takes his personal pressures out on Jason.
Serena fights chaos on the ward during a hospital inspection as Meena grapples with a momentous decision. Nicky goes all out to impress Mo and prove she deserves her place on Darwin. Meanwhile, Hanssen's wounds remain raw as he tries to lock Gaskell and his crimes in the past.
A beloved face from the past forces Serena to think about her future. Dom and Lofty find themselves at a crossroads when a game highlights the cracks in their relationship, and when Frieda and a difficult patient reach a place of understanding, Petrenko takes in an unlikely companion.
Love is in the air, but can Serena and Bernie overcome their issues? Meanwhile, when Jason and Greta's plans are thrown into chaos, Jason enlists Xavier's help. A despondent Dom realises he must fight for his relationship, but will a grand gesture be enough to win Lofty back? And when Mo pushes Nicky to reach her full potential, Nicky feels the pressure and questions if she's up to the challenge.
An acquaintance from Nicky's past puts her in a difficult position. Will Nicky do the right thing? With a little nudge from Hanssen, a struggling Sacha finally opens up to a loved one. And Serena is forced to acknowledge what's really troubling her.
Christmas Day opens up old wounds for Fletch, while an explosive family secret is exposed, and a mysterious Santa walks the halls of Holby. Recent events cause Hanssen to doubt his suitability for CEO, but when the team are faced with saving an esteemed colleague's life, will he change his mind?