1Not Waving but Drowning
New consultant Fleur Fanshawe shakes things up on Keller.
2Bounce Back
A misunderstanding leads to Dom calling Kyle's loyalty towards him into question.
3The Science of Imaginary Solutions
Mo is determined to prove she can swim with the sharks, but is she in over her head?
4Chaos in Her Wings
Colette's struggle to help Zosia pushes her relationship with Guy to breaking point.
5'We Must Remember This'
Serena is distraught when her mother does not recognise her.
6Severed
Serena is overwhelmed by Adrienne's situation. Adele struggles with her workload.
7Flesh and Blood
Guy is forced to confront the fact that Zosia may not be cured of her mental illness.
8I Am What I Am Not
Jesse is forced to face up to how his dalliance with Zosia may have impacted her health.
9Estel
Raf is thrown by Amy's request. Dominic ruthlessly risks all to fulfil his ambitions.
10Star of Wonder
Zosia gets emotionally involved with a patient with catastrophic consequences.
11I Will Honour Christmas in My Heart
Elliot's plans for a quiet family Christmas are derailed by the arrival of a friend.
12Should Auld Acquaintance Be Forgot
Dominic's past returns to haunt him. Mo needs a date for her sister's wedding.
13Brand New You
Guy's world is rocked by the arrival of a familiar face on the ward.
14Wages of Sin
Jac considers the possibility of a new start with Emma in the USA.
15Sucker Punch
Jonny goes head to head with Guy. A shocking discovery knocks Sacha for six.
16Good Girls Don't Lie
Mo tries to hide from Adele, not ready to tell her about the family secret.
17The Beat Goes On
Mary-Claire gains a fresh perspective on her relationship with Harry.
18Love Divided by Three
Sacha is left reeling at the news that his daughter Rachel has left the hospital.
19Be Bold, Be Bold
Is Sacha prepared to sacrifice the love of his daughter and do the right thing?
20Domino Effect
Dominic and Arthur compete to impress, but are they stronger together than apart?
21Trust in Me
As Guy investigates the death of a patient, Jonny finds himself in hot water.
22Blindside
Jonny is arrested. Arthur frets over choosing a specialism.
23We Have Technology
Harry resists further treatment on his face until he's given a few home truths.
24Rock and a Hard Place
Mo has to make a choice about her father when she risks losing her last link to him.
25The Last Time I Saw You
Elliot and Mo fight to save Jonny from being returned to prison by a vindictive Guy.
26Squeeze the Pips
Jonny returns to work after his release from prison, with explosive consequences.
27Go the Distance
Essie fights for her relationship with Sacha, but has he already moved on?
28All About Evie
Fletch is horrified when Evie's first day at her new school leads to disaster.
29Small Disappointments
Annabelle and Zosia go head to head with Guy over a special case.
30Homecoming
Battle lines are drawn as new CEO Henrik Hanssen clashes with Guy.
31Lifelines
Zosia offers to help Annabelle develop her groundbreaking experimental procedure.
32The Ides of March
Zosia steps out from behind her father's shadow and proves her worth as a surgeon.
33All Coming Back to Me Now
Essie freaks out when Sacha wants to take things to the next level.
34Tug of Love
After a tough day, Jesse and Adele are brought closer together than ever.
35When a Man Loves a Woman
A fiery Essie clashes with Sacha. With increasing money pressures, Fletch crosses a line.
36The Children of Lovers
It's Zosia's first day back on Darwin, but there's a fly in the ointment - Ollie.
37Spiral Staircases
Guy and Jesse clash over Guy's surgical risk-taking.
38Losing Control of the Wheel
An exuberant new doctor on AAU puts Arthur to the test.
39Beneath a Mask
Fletch finds himself at breaking point as his family are kicked out on the street.
40U-Turn
Fletch finds he is in too deep with the pharmaceutical robbery.
41Family Fortunes
Essie shocks Sacha by announcing she wants to have a baby.
42Return to Innocence
A devastated Mo tries to keep her head above water while waiting for Adele to come round.
43A Good Man
An uncompromising Mo decides Fletch's fate. Oliver oversteps the mark with Zosia.
44Speak True
Sacha and Essie realise they may have slightly different visions of their future together.
45Beautiful
Elliot is presented with a dilemma when he is offered an exciting new position.
46Infallible
Guy attempts to rectify the past through an old friend of his deceased wife.
47Man of Conscience
Jesse and Guy's increasingly fractious relationship hits the rocks.
48An Eye for an Eye
Guy is held hostage by a grieving widower looking for revenge.
49Shockwaves
Sacha's world is thrown into uncertainty when an old nursing friend of Essie's turns up.
50At First I Was Afraid
When Elliot's first love tumbles back into his life, Elliot makes a startling choice.
51Cover Story
Cara is shell-shocked when her undercover cop husband arrives at the hospital.
52Ever After
It's the day of the wedding. Adele's world is rocked when she makes a startling discovery.