It's the day of the wedding. Adele's world is rocked when she makes a startling discovery.

Cara is shell-shocked when her undercover cop husband arrives at the hospital.

When Elliot's first love tumbles back into his life, Elliot makes a startling choice.

Sacha's world is thrown into uncertainty when an old nursing friend of Essie's turns up.

Guy is held hostage by a grieving widower looking for revenge.

Jesse and Guy's increasingly fractious relationship hits the rocks.

Guy attempts to rectify the past through an old friend of his deceased wife.

Elliot is presented with a dilemma when he is offered an exciting new position.

Sacha and Essie realise they may have slightly different visions of their future together.

An uncompromising Mo decides Fletch's fate. Oliver oversteps the mark with Zosia.

A devastated Mo tries to keep her head above water while waiting for Adele to come round.

Essie shocks Sacha by announcing she wants to have a baby.

Fletch finds he is in too deep with the pharmaceutical robbery.

Fletch finds himself at breaking point as his family are kicked out on the street.

An exuberant new doctor on AAU puts Arthur to the test.

Guy and Jesse clash over Guy's surgical risk-taking.

It's Zosia's first day back on Darwin, but there's a fly in the ointment - Ollie.

A fiery Essie clashes with Sacha. With increasing money pressures, Fletch crosses a line.

After a tough day, Jesse and Adele are brought closer together than ever.

Essie freaks out when Sacha wants to take things to the next level.

Zosia steps out from behind her father's shadow and proves her worth as a surgeon.

Zosia offers to help Annabelle develop her groundbreaking experimental procedure.

Battle lines are drawn as new CEO Henrik Hanssen clashes with Guy.

Annabelle and Zosia go head to head with Guy over a special case.

Fletch is horrified when Evie's first day at her new school leads to disaster.

Essie fights for her relationship with Sacha, but has he already moved on?

Jonny returns to work after his release from prison, with explosive consequences.

Elliot and Mo fight to save Jonny from being returned to prison by a vindictive Guy.

Mo has to make a choice about her father when she risks losing her last link to him.

Harry resists further treatment on his face until he's given a few home truths.

Jonny is arrested. Arthur frets over choosing a specialism.

As Guy investigates the death of a patient, Jonny finds himself in hot water.

Dominic and Arthur compete to impress, but are they stronger together than apart?

Is Sacha prepared to sacrifice the love of his daughter and do the right thing?

Sacha is left reeling at the news that his daughter Rachel has left the hospital.

Mary-Claire gains a fresh perspective on her relationship with Harry.

Mo tries to hide from Adele, not ready to tell her about the family secret.

Jonny goes head to head with Guy. A shocking discovery knocks Sacha for six.

Jac considers the possibility of a new start with Emma in the USA.

Guy's world is rocked by the arrival of a familiar face on the ward.

Dominic's past returns to haunt him. Mo needs a date for her sister's wedding.

Elliot's plans for a quiet family Christmas are derailed by the arrival of a friend.

Zosia gets emotionally involved with a patient with catastrophic consequences.

Raf is thrown by Amy's request. Dominic ruthlessly risks all to fulfil his ambitions.

Jesse is forced to face up to how his dalliance with Zosia may have impacted her health.

Guy is forced to confront the fact that Zosia may not be cured of her mental illness.

Serena is overwhelmed by Adrienne's situation. Adele struggles with her workload.

Serena is distraught when her mother does not recognise her.

Colette's struggle to help Zosia pushes her relationship with Guy to breaking point.

Mo is determined to prove she can swim with the sharks, but is she in over her head?

A misunderstanding leads to Dom calling Kyle's loyalty towards him into question.

New consultant Fleur Fanshawe shakes things up on Keller.