Episode 1
Aired Apr 26, 2021
Twelve new housemates arrive, determined to win; they contend with the new house and new tricks while getting to know each other.
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Episode 2
Aired Apr 27, 2021
New friendships and alliances solidify as the housemates deal with an explosive eviction. Eight new housemates arrive, flipping the game on its head.
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Episode 3
Aired Apr 28, 2021
Housemates old and new get to know each other, with battle lines drawn and alliances formed ahead of the next eviction.
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Episode 4
Aired May 2, 2021
The housemates prepare for a week of surprises, not all of them good; one surprise threatens to shake-up the entire house.
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Episode 5
Aired May 3, 2021
The surprises keep coming as Surprise Week continues; one housemate's big mouth could be his downfall as his position hangs in the balance.
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Episode 6
Aired May 4, 2021
Big Brother has the famished housemates exhausted with a battle royale that pits the carnivores and vegans against each other.
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Episode 7
Aired May 5, 2021
Surprise Week finishes up with the biggest shock ever when Big Brother reveals that there is a secret attic.
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Episode 8
Aired May 9, 2021
Big Red Button Week sees the housemates wrestling with whether or not to push the button, until someone has an idea to change things up.
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Episode 9
Aired May 10, 2021
The Big Red Button haunts the contestants as no one knows if it will bring punishment or reward; as reality sets in, loyalties are put to the test.
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Episode 10
Aired May 11, 2021
Big Red Button week sees the unveiling of another secret room; as one housemate feels the reality of isolation, there's a huge advantage on offer that will push everyone to the edge.
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Episode 11
Aired May 12, 2021
One housemate tries to keep their friends close and their enemies closer; a housemate is blindsided when another gets their chance at revenge.
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Episode 12
Aired May 17, 2021
The housemates get ready for the shock of their lives as a group of intruders prepare to up-end the game.
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Episode 13
Aired May 18, 2021
The panic room takes two new victims; two intruders must rise to the challenge and join the game for good.
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Episode 14
Aired May 19, 2021
The housemates are tasked with mission impossible; a pumped-up challenge leaves someone feeling down; two housemates get close; an eviction ceremony shock surprises the housemates.
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Episode 15
Aired May 24, 2021
Housemates must keep their cool in a difficult challenge; a budding romance could cause issues in the house; Sonia announces a twist.
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Episode 16
Aired May 25, 2021
As the walking dead housemate prepares for a fight, a new force makes an appearance and tries to mark the next walking dead.
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Episode 17
Aired May 26, 2021
Big Brother recruits some special guests to help with a task that leaves everyone in a flap; one player doesn't survive the walking dead eviction showdown.
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Episode 18
Aired May 31, 2021
Big Brother brings in some special guests for a challenge that has everyone in a flap; one massive player falls victim to the walking dead eviction showdown.
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Episode 19
Aired Jun 1, 2021
Big Brother delivers a twist that will send home an important player, adding fuel to the fire of Hell Week.
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Episode 20
Aired Jun 2, 2021
Hell Week comes to an end as the housemates face their most terrifying challenge yet; a bombshell shakes things up for everyone.
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Episode 21
Aired Jun 7, 2021
The new heads join forces to create havoc in the house; old alliances come to an end to make room for new ones.
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Episode 22
Aired Jun 8, 2021
Big Brother goes into overdrive as the new heads enjoy their power and perks; one housemate must talk their way back into a circle of trust.
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Episode 23
Aired Jun 9, 2021
Paranoia is at an all time high and huge deals are being made with only eight housemates left; a massive game changer causes chaos.
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Episode 24
Aired Jun 14, 2021
The shimmering jewel in Big Brother's crown is revealed as the endgame draws near, along with the biggest move the game has seen.
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Episode 25
Aired Jun 15, 2021
The housemates deal with the consequences of the last eviction, as someone awaits a roommate in the mirrored room.
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Episode 26
Aired Jun 16, 2021
A huge challenge with a huge reward pushes housemates to their limits, but the biggest surprise hits when the mirrored room is revealed.
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Episode 27
Aired Jun 21, 2021
The end approaches for the final seven housemates; they push themselves to breaking point through difficult challenges.
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Episode 28
Aired Jun 22, 2021
The four remaining houseguests try to secure a place in the final three; the race is on for the newest and most powerful HoH.
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Episode 29
Aired Jun 23, 2021
Only five housemates remain after months of challenges and evictions, and they all have their sights on the podium.
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Episode 30
Aired Jun 28, 2021
The final four battle it out in the heart-stopping endgame to see who will make the final three in the anticipated grand finale.
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Episode 31
Aired Jun 29, 2021
Sonia Kruger grills the final three contestants on why they deserve Australia's vote; the housemates are reunited once more.
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