Heather is turning 50 and to kick off the birthday festivities, Heather learns that her receptionist is dating Colin. Meanwhile, Liz drags Heather home against her will for Ainslie’s birthday shin-dig.

While Liz disappears to drown her sorrows, Harry develops a crush on his policeman neighbor Pete and Ben and Heather explore their unexpected chemistry.

The house is officially disbanding, after four years of close contact. Right when they were on the brink of an elegant parting, Heather makes a choice that will plunge at least five lives into chaos.

Ainsley finds herself in a committed relationship for the first time. It's everything she's ever dreamed of, but grows suspicious that Simmo might propose and worries that things are moving too fast.

Liz is bearing the brunt of Harry's anger and grief. In an effort to rescue their friendship, she throws herself at the mercy of the last person on earth she would ask for help.

Living arrangement boundaries have been pushed just a little too far. Nudie strolls, hygiene complaints and a general lack of self awareness see everyone, bar Ainslie, ready to kick Ben out.

Following Heather's surprise party, the housemates try to put their differences aside for Mia's visit. What they didn't expect was the household to erupt with the most violent bout of food poisoning.

When Ainsley innocently asks the house about their thoughts on private schools, all the fault lines are exposed...

Liz begins to catch on to Heather and Ben’s suspicious behavior and an unforeseen medical emergency rocks the worlds of our housemates. Harry embarks on another date with Policeman Pete.

In desperate need of surgery he can't afford, Ben weighs up his options... and decides to engage in some light insurance fraud.

Heather's newfound serenity is skewered when her graduation day devolves into chaos.

Ainsley's preparations for a gender-reveal party are derailed by the wrath of Lachlan's ex Mel.

The existence of the house is under threat when a housemate decides to move out and the gang discovers that replacing them is virtually impossible.

Following her UK success, Liz is being wooed by the creme-de-la-creme of law firms, including the former boss, who brutally fired her. He now wants to hold a soiree in her honor to offer her partner.

In the midst of Manju's health crisis, Ainsley is stunned to learn from her stepmother, Cheryl, that her father, Desmond, has died very suddenly, leaving one hundred percent of his sizeable estate to his only daughter.

After a spectacular indiscretion in his workplace, Harry's career is well and truly on the line. Facing a professional investigation, he is receiving strategic advice from Liz, whilst trying to hide the whole situation from his suspicious mother.

Ainsley, Heather, Ben, Liz and Harry have decided to sell. The drunken joke turned reality is officially coming to an end. As the auction nears it's crescendo, where will the housemates be left standing.

Flailing in his open relationship, Harry leaves a string of deeply regrettable voicemail messages on his boyfriend's phone.

With the entire house depending on him, Ben launches himself as a BnB accommodation provider. He's feeling the pressure, but he's rising like a boss, till his teen daughter crash lands at the house.

High on love, Harry wants to bring his new man to his family's Diwali celebrations... and ends up causing a meltdown.

When Liz returns from her UK studies, Harry is reminded that while everyone around him has new opportunities or relationships to speak of, he's somehow found himself, at a complete standstill.

Heather's in a funk, hitting peak mediocrity, just tolerating Ben. Desperate for a circuit breaker, she accidentally sets Ainsley and Harry on a mission to get her back on the dating scene.

Harry almost pulls off the celebration of a lifetime at Manju's 70th - until Ainsley accidentally reveals last year's secret gayby negotiations, causing Manju to promptly declare war on her son.

As Ben, Ainsley, Harry and Liz kick off their housewarming celebrations, Heather doses herself up on a concoction to combat her urge to return home. Will she last the night or farewell this new life?

The gang's plan to buy their new house is upended when Liz runs into her ex-husband and his girlfriend.