Big Brother Australia Season 4 is yet to be announced Dec 04, 2023 on Seven Network

All the housemates are reunited as host Sonia Kruger grills the final three on why they deserve Australia's vote, before the winner of the ultimate reality television title and $250,000 is announced.

Big Brother's heartstopping end game is here as the final four battle it out. Who will make it to the final three ahead of the epic live grand finale?

After months of challenges and evictions, only five housemates stand and everyone has their sights set on podium. All that lies between them and the final four are two epic nomination challenges.

Paranoia is setting in for the top six housemates as they fight for their lives in Second Chance Week.

The end is in sight and it's do or die for the final seven housemates. They'll push themselves to breaking point through the toughest challenges yet in a bid to save themselves from eviction.

A massive challenge with a massive reward will push housemates to their limits but the biggest surprise is yet to come when the mirrored room is revealed.

As housemates deal with the ramifications of the last eviction, someone awaits a roommate in the mirrored room - but will they go crazy first?

With the end game getting closer, get ready for the biggest move the game has seen as the shimmering jewel in Big Brother's crown is revealed.

With just eight housemates remaining, paranoia is high and huge deals are being made. What massive game-changer lies with Big Brother's secret eye?

As the heads of house enjoy the perks and power of being 2IC, Big Brother goes into overdrive, revving up the rest of the housemates. Can one housemate talk their way back into a circle of trust?

The new heads of house embrace their role, joining forces to create havoc. Meanwhile, past alliances are thrown out the window.

Hell Week reaches it dramatic conclusion with the most terrifying challenge in program history. Then, an almighty bombshell blows the game up.

Big Brother adds fuel to the fire of Hell Week with a spectacular twist that will send home a major player.

Big Brother unleashes the devil within, pushing housemates to the limit - mentally, physically and emotionally - in the most brutal challenges yet. This is hell week.

Big Brother flies in some special guests for a task that has everyone in a flap. Which massive player won't survive the walking dead eviction showdown?

While the walking dead housemate gets ready for battle, a new force is on the rise. Will they be strong enough to make their target the next walking dead?

Housemates have to keep their cool in the most nail-biting challenge yet. Could a budding romance be the kiss of death? And Sonia reveals another big twist.

The housemates are tasked with mission impossible, a pumped-up challenge leaves someone feeling deflated, two housemates get close and an eviction ceremony shock.

Big Brother's panic room takes two new victims and which two intruders will rise to the challenge and join the game for good.

The housemates are about to get the shock of their lives as six incredible intruders prepare to turn the game upside down.

Keep your friends close and your enemies closer is the name of the game for one determined housemate. A monumental blindside unfolds when they finally get their shot at revenge.

As Big Red Button week continues, Big Brother reveals another secret room. While one housemate feels more isolated than ever, there's an advantage so big it'll push everyone to their limits.

The Big Red Button is in the house and no one knows if it will bring punishment or reward. As reality hits, loyalties are tested and the determination to win is greater than ever.

It's Big Red Button week and the housemates have to decide whether to push or not to push. With all housemates on edge, someone has a plan to change things up.

It's party time as housemates old and new get to know each other. But as alliances form, battle lines are drawn. Who will be next to leave the Big Brother house?

After an explosive eviction, new friendships and alliances solidify. But little do they know, eight new housemates are descending via BB Air and they're about flip the game on its head.

Twelve brand new housemates arrive, determined to beat Big Brother at his own game. As they get to know each other, they have to contend with Big Brother's new house, new playground and new tricks.

The live grand finale is here. Three housemates remain but only one will win the title of Big Brother 2020 and the $250,000 prize. Who wins? You decide.

All that stands between the Top 4 and a place in the grand final is one incredible nomination challenge. Who will win the power to determine the Final 3 for 2020?

The battle lines are drawn for the biggest showdown of the game as the Top 4 for 2020 is decided. Expect two epic challenges and a monster twist when one housemate's secret power is revealed.

With only four days left in the house, the $250,000 prize is closer than ever as two housemates roll the dice on Big Brother's biggest twist yet!

Big Brother's mind games test the housemates' resolve, while the nomination challenge puts loyalties to the test.

Paranoia grows and game play takes an unexpected turn as Big Brother saves his most epic twist for last.

One gravity defying challenge and two unbreakable bonds but the big power sits with a little package.

A shattered Housemate seeks revenge and sets out to bring down an unbreakable alliance.

They've been cut off from the outside world for 28 days but that's all about to change. Big Brother is placed in lockdown and the game is suspended as the escalating coronavirus pandemic hits home.

They've made it to the Top 10 but there are plenty of shocks ahead as the game heats up. A bold plan is hatched but a costly mistake from one of their own could be the alphas undoing.

As alliances shift yet again, one Housemate's willpower could be their strongest ally.

Things are getting cramped in the Big Brother house as one Housemate plots a risky power play.

Housemates indulge in some good clean fun but as dark clouds approach, even the strongest players are on shaky ground.

One Housemate decides it's time to unite the two sides of the house to get rid of a common enemy. But could this big move backfire? Plus, a surprise return!

Big Brother gives one Housemate a second chance to take down the others. As Housemates become "yes men", there is another pairs Nomination Challenge to get stuck into.

Sleep deprivation sets in with the latest House Task, Big Brother sends Housemates in a spin and there is a huge twist on the horizon.

Mother Nature unleashes hell as Housemates compete in the most physically gruelling challenge yet. There's a storm brewing inside the house when one person sets off a game of "he said, she said". 

 As two Housemates get close, others are forced to face their deepest fears. With a house divided, one big play changes the game.

The final four Housemates descend from the heavens and the King and Queen of the house aren't impressed. While some Housemates get close, others better hold on tight because someone will be evicted.

Four new Housemates enter the Big Brother house under the cover of darkness. Big Brother unveils a winter wonderland that will force old and new Housemates to break the ice, but one will be evicted.

Big Brother has been watching and he's ready to play. The first 12 Housemates enter the Big Brother house and one is tasked with a secret mission.