Three months after Bec and Matt's wedding, they are dealing with Bec's pregnancy and the paternity of the child. Jenny starts her teaching course at university, while Frances and Zach continue parenting Jasmine. Sophie and Doug are happy, but their relationship is put to the test when Doug learns he is the father of Bec's baby.

The couples are loved-up and looking forward to Jenny's big weekend away but things don't go to plan. There's the issue of Jenny being broke and the bigger issue that she hasn't told the girls. Bec worries about the Matt and Doug dynamic in the confined spaces of a holiday house. Frances' going away plans are snagged before she's even left when Jasmine is nearly arrested. Sophie wants to celebrate becoming a doctor and enjoy her last days of freedom before the grown-up medical world descends. Meanwhile, the Gross's first weekend alone in a long time goes from bad to worse with the arrival of Jasmine, then Bridget and Wes and finally, Nana Dot.

Anxious to make a good impression at her orientation week, Jenny tries desperately to fit in, but her first day dredges up ghosts of high school past and sees her return to her comfort zone — the girls toilets. Bec is horrified by the thought that her Mum and Dad might be dating again, but her dad has a different surprise in store when he introduces his new fiancee, twenty-eight-year-old Brandi. Sophie's excitement for the first day of her medical placement is quickly dishevelled when she's relegated to menial tasks, but when Sophie is faced with a medical emergency, she decides to use her initiative. Meanwhile, Zach's wife Claire turns up on Frances' doorstep to apologise for her past behaviour, but Frances has a feeling that's not all she's there for.

Sophie is keen to take her mind off her upcoming hearing with the hospital board, but in doing so, makes a bad situation worse and must face some uncomfortable truths about her own behaviour. Bec is attempting to do it all, but something has to give and her decision about what to let go shocks those closest to her. When Jenny finds out that her Dad has been made redundant, it magnifies her guilt about spending all the lottery money and she decides to take on a new job managing Lachie's band, but will spending even more time with Lachie impact on her relationship with Callum?

With Sophie and Matt unable to attend the birthing class, Bec and Doug are reminded of the close bond that they shared in the past. Confronted by their intimacy, Matt reveals his true feelings.

It's the annual hospital fete fundraiser, but the fun and games are tainted for Sophie when rival student Spencer accuses her of receiving biased treatment because of her relationship with Doug and also of having bought her way back into medicine. Sophie refutes the claim but faces serious trouble when stolen hospital drugs are discovered in her bag. Bec, Matt, and Doug find themselves debating over the idea of a home birth. Meanwhile, the awkwardness between Jenny and Lachie since their kiss has become unbearable, and Jenny tries to block it out by focusing on the band's first big gig and overcompensating with Callum; however, a psychic reading at the fete puts her on shaky ground. Could Lachie be the one after all?

Lives and futures are on the line as Jenny, Frances and Sophie grapple with choices that could tear their worlds apart.

Tormented by the guilt she's carrying at having cheated on Callum, Jenny is relieved when Rhys makes a reappearance and she is able to get her secret off her chest.

Jenny discovers her actions have had a devastating ripple effect for those she cares for the most.

Seduced by adventurous Cat, Sophie considers life outside of Melbourne, but when she raises the topic with Doug, it is clear his ideas for the future are firmly grounded with the baby.

When Tiffany learns that her ex-husband, Craig, is planning to move their kids overseas, she makes a snap decision that could completely jeopardise her custody case. Jenny is planning the ultimate combined baby shower for Bec and Bridget, and her nerves are hot knowing she has to face Callum's mum for the first time since cheating on him. Jenny's decision not to worry about what other people think has a ripple effect at the party when it convinces Rhys to cast off the fear of public affection that has put Jonathan offside. Meanwhile, when Sophie contemplates applying for a six-month internship in Kenya, she and Doug must face the possibility of an extended separation - and what it will mean for their relationship

Sophie is on edge as she grapples with her impending stepmum role, but when Bec's water suddenly breaks, Sophie is confronted with more than impending parenthood as she is left to deliver the baby.

Jenny is a ball of stress about starting her teaching rounds at Renwood, and visions of Tiffany are doing little to ease her angst. Dot tells her, if in doubt, try a dose of tough love - but when Jenny tries this approach, it only makes the situation worse. Bec tells her to ignore the troublemakers, but this doesn't work either. Finally, inspired by a chat with Bridget, she decides that the best course of action is to become mates with her students.

Bec realises how much effort Matt is putting in to look after her and Harrison and worries he needs a break. But in keeping Matt away, old wounds open, and Matt worries he's becoming a second-class dad.

In Jenny's last week of her teaching placement at Renwood, she discovers the extent to which one of her students is bullying a student.

When Jonathan and Rhys are the victims of a brutal assault, Frances goes on a crusade to obtain justice. In the process Flynn becomes aware of Frances' passion and skill as a lawyer.

Frances' surprise that it will be just her and Flynn in the law practice is soon overtaken by Tiffany's request that Frances take over as her lawyer in the custody hearing; the case starts tomorrow. Despite immense reservations, Frances agrees to help out. Matt and Bec's relationship continues to crumble as Matt emotionally disengages from the marriage. When an egregious claim is made in the courtroom that Matt is having an affair with Tiffany, Bec's doubts surface, and she wonders if there may be any truth to the allegation. Meanwhile, Sophie's declaration that she never wants to get married throws Doug and causes him to wonder if he's wasting time in a relationship that's ultimately going nowhere.

During preparations for her and Doug's engagement party, Sophie begins to feel a growing sense of dread. It builds until Sophie finds herself in the grips of a panic attack. It would appear that Matt and Bec have moved through their recent difficulties and into a loving phase of their relationship. When Bec discovers a forgotten sketchbook, which holds plans and designs for their ideal home, she feels it's the perfect time to finally get their dream house under way. But there is a secret that threatens to shatter Bec's dreams irrevocably.

Jenny feels uncomfortable about asking Glenn to attend the naming day, not wanting to upset Bec and Carolyn. Patrick remains suspicious about Jen's new man, but after a frosty dinner confrontation, he promises to make an effort - and urges Jenny to bring Glenn to the big day. Meanwhile, Frances faces a parenting dilemma when Jasmine asks her permission for Ollie to sleep over. Although confronting and uncomfortable for Frances, she learns that she has every right to be proud of her influence in Jasmine's life.

As Matt and Bec embark on their search for a block of land on which to build their dream home, Bec discovers money is missing from her bank account, and she's devastated when it comes to light who is behind it.

The girls take 'Saturn return' to a whole new level as their year ends in an astonishing revelation, heartache and a horrific death. After her break-up with Doug, Sophie is handed the perfect distraction when Flynn tells her rebuilding is about to start on the Kenyan medical clinic. He thinks they should go over and be part of it, but Sophie is worried about Doug's reaction. Jenny, blissed out after reconciling with Callum, is further buoyed by news that she's a shoo-in for a part-time teaching position. Life seems too good to be true. It is. Bec and Matt, having just bought a block of land, are seemingly in a great place. But as Bec becomes increasingly concerned about Doug's state of mind, Matt decides that he can't keep his betrayal a secret any longer.