Billie and Mick's relationship strains under the weight of her infidelity.

Nina faces a big decision, is she ready to leave St. Francis? The Proudman siblings call a crisis meeting in regard to Geraldine.

In the season finale, Nina prepares for the biggest day of her life. Meanwhile, Mick goes on a search to bring Billie home.

Nina Proudman is floating on cloud nine. She's in love with Dr Patrick Reid and happy in her job - but is everything about to change?

Nina wakes up hung over in a stranger's bed, faced with overwhelming evidence she's had a one night stand. Meanwhile, with Nina missing from work and home, Patrick's concern leads him to investigate...

As Billie prepares for a new life overseas, Nina faces Zoe's first birthday and the anniversary of Patrick's death. But first the St Francis staff must face an emergency of epic proportions.

Billie struggles with the knowledge that Mick is single; Nina deals with the fallout from Thomas meeting the Proudmans; Kim has a shock proposal for Clegg.

Nina is overwhelmed with the demands of her job as acting head of obstetrics, as she supports Billie to make a difficult decision about her marriage with Mick.

After separating from Mick, Billie decides to tackle her grief head-on with a girls night out where Kerry advocates a fool-proof plan to mend Billie's heart.

After spending five months in Baltimore, Nina returns home after receiving news of her father Darcy's heart attack. Billie and Mick are now living at Nina's apartment and trying for a baby. Jimmy also returns after being abroad with new girlfriend Tammy. Nina finds out that Chris has moved to Brisbane with Alice and Lucy. Darcy asks Geraldine to renew their vows and Nina meets a new obstetrician, Fraser King, at the hospital.

Nina struggles to decide on a course of action after Fraser freezes again during a routine consultation. Meanwhile, Mick and Andrew fight over old issues, and Jimmy is upset by his parents' hypocrisy.

Nina makes an important decision about her love life; meanwhile, Billie and Mick try to defy the Proudman Wedding Curse, and Cherie uncovers a shocking family secret.

Nina finds herself at the heart of Proudman family chaos, while trying to assure Patrick her relationship with Adam is platonic.

The reality of Patrick's departure hits Nina as she walks to work. Later at Patrick's farewell, Nina struggles to say a proper goodbye in front of all her workmates.

Nina is shocked by the arrival of a new male midwife; Billie is under pressure as Lawrence's apartment goes to auction; Zara surprises Jimmy with a life-changing announcement.

Billie plays cupid for two hopeless lovers and three generations of Proudman women help Nina do what she does best in a life-affirming moment.

Nina and Harry make an important decision about their future. Jimmy summons the courage to tell Zara the truth. Billie's sex wall hits a snag, when her latest "brick", Dan, tries to out-woo her.

Nina battles her doubts as she prepares to interview for the Head of Obstetrics role. Billie’s confused after being stood up by Dan. Will Will discover the truth about Kerry and Jimmy’s indiscretion?

Nina and Fraser continue to get to know each other. Cherie returns to her job as a nurse at the hospital. Billie and Mick discover they will have to go through IVF in order to have a baby. Nina goes on a date with her fathers doctor Ben. Billie reveals to Mick she had two abortions during her teens.

When Cherie discovers that Jimmy and Tammy are planning a secret wedding, Nina rallies the Proudmans in an attempt to reunite her family. Amidst the chaos, Billie, Mick and Andrew try to make a baby.

After a tragedy at work, Nina and Patrick console each other. Could this new intimacy lead to something more? Meanwhile, Billie and Mick get the results of their pregnancy test.

Nina hosts a dinner party at Patrick's, where he charms the Proudmans.

Burying concerns over the identity of her biological father, Nina focuses on the hunt for a rental property with Patrick. Nina's only forced to confront the issue when Billie reveals she located one of the possibilities. Billie's disappointed to discover her only fertile time of the month coincides with Tim and Andrew's first big date. Jimmy and Zara attend the first ultrasound for their baby.

A week after moving in with Patrick, Nina worries that living & working together is putting a strain on their relationship; later, Nina gets a surprise call from Dr Noonan hoping to catch Geraldine.

Nina arrives at work shocked to discover Patrick is being investigated over an allegation of patient abuse