Big Brother: All-Stars' houseguests evicted Kaysar Ridha from the Big Brother house through a unanimous vote instead of Christmas Abbott, who then turned around and became the season's new Head of Household.

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Kaysar, who previously competed on Big Brother's sixth and seventh seasons and finished in tenth place both times, was evicted from the Big Brother house via a 10-0 vote over Christmas, who had competed on Big Brother's 19th season and placed third.

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After Christmas survived the vote, she won the season's fifth Head of Household competition.

The Big Brother: All-Stars broadcast began on Day 30 of the game with Kaysar and Christmas on the chopping block.

Footage then flashed back to Day 27 after the Veto Meeting in which Kevin "KC" Campbell saved himself with the veto and then the HoH, Enzo Palumbo, named Christmas the replacement nominee.

Kaysar was shown confiding in Memphis Garrett about the majority alliance running things in the house, but Memphis claimed he wasn't aware of one. Memphis, however, took credit for actually creating the alliance, and so he said Kaysar was "barking up the wrong tree."

Meanwhile, Dani Briones had been planting seeds around the house, telling people that Ian Terry is a threat as well as Bayleigh Dayton and Da'Vonne as a power couple, but she wasn't exactly being careful about her gossiping.

"I'm done with it man, her game is messy and sloppy," Enzo complained in the Diary Room before telling Cody Calafiore that Dani was "all over the place."

Tyler also admitted Dani was spreading "madness" throughout the house and had been trying to turn The Slick Six against each other.

Tyler was tired of Dani's gameplay, and so he threw Dani under the bus to Bayleigh, who wasn't happy to hear Dani had been planting seeds to screw her and Da'Vonne over.

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Since Cody and Enzo began the game as best buds and Cody considered Enzo at the root of all his alliances, he decided to come clean about another group he had been working with.

Cody shared how he was in another alliance with Memphis, Christmas, Dani, Tyler Crispen, and Nicole Franzel.

Enzo determined Cody and Tyler were his "guys" and he didn't care whom else Cody was working with because he had other allies as well.

Tyler then worked to get back on Da'Vonne's good graces after their fallout over David Alexander's loose lips by informing her of Dani's plotting behind her back. Da'Vonne said Dani could swing but better not miss, adding that Dani needed to go.

There was clearly "poison" in The Slick Six alliance, according to Da'Vonne, and Cody determined the alliance was "done" and the six couldn't trust or believe in the alliance anymore.

Enzo told Cody that Dani was the bigger threat of the three girls and they could no longer trust her with information.

Ian and Kevin were then shown talking about Kaysar's claim a core group had been running the house, and Ian assumed Cody and Nicole were tight and in charge.

Ian realized his relationship with Nicole wasn't what he thought it was, and so he told the cameras he must be more careful around her going forward. Kevin didn't want people to run circles around them in the house, and Ian added, "We've been had."

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Ian discussed the core alliance with Bayleigh and described it as "an octopus." Ian admitted he thought Cody was the head of the octopus, but Bayleigh gave that credit to Dani.

However, Bayleigh pointed out to Ian how Cody seemed "covered on all sides" by friends and allies. Ian said everyone probably thought they're tight with Cody, and Bayleigh egged him on, saying it would be great for her game.

Bayleigh told Ian that she'd be up for switching things up in the house, and Ian agreed they should be a tag-team.

Ian and Kevin were afraid to put their concerns out there and become even more like outsiders, so Ian suggested Kaysar should blow up the house before he leaves and put everyone in their place.

Ian confronted Kaysar and warned him that he was going home because it'd probably be impossible to flip seven votes against Christmas. With that being said, Ian told Kaysar that everyone in the game was "a side piece" to Cody and Nicole.

Ian said the All-Stars were starting to "compare notes" and all roads led back to Cody and Nicole being the decision-makers.

Kaysar considered lighting the house on fire, saying it sounded like fun.

When it became time for the live eviction, Christmas asked her fellow houseguests to vote the HoH's way, and Kaysar announced he loved everyone on a personal level but he was disappointed in their gameplay.

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"Here's why," Kaysar began, while standing. "Cody and Nicole have been running this house since Day 1 and they have a secret alliance that's going to take them all the way to the end."

"Meanwhile, the guys have an alliance... with David and Tyler, because it was obvious," Kaysar continued. "And then the last alliance of course -- Dani, Nicole and Cody. Cody finds himself in this love triangle, but no one is willing to take a shot."

Kaysar told the group that if they wanted to play Big Brother: All-Stars and not charades or participate in some type of playful reunion, everyone should vote to keep him around.

When Cody cast his vote to evict Kaysar, he sarcastically called him "the All-Star of all All-Stars" who never even made it to the Big Brother jury before. And Dani called Kaysar "disrespectful and tasteless."

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Big Brother host Julie Chen then announced the news Kaysar had been evicted from the house, and he gave everyone hugs before leaving. Kaysar also apparently told Cody that he hoped Cody wouldn't have hard feelings toward him, and Cody laughed and assured him that wasn't the case.

When asked what he trying to accomplish with his pre-eviction speech in his post-eviction interview with Julie, Kaysar explained, "I knew it was going to be a longshot. That was sort of my Hail Mary. I was going to see if I could muster up some votes."

"I knew there were several people who wanted to keep me in the house, but they knew that they didn't have all the votes to keep me in, so they didn't want to expose themselves. So I figured I would leave them a little present on my way out."

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Julie acknowledged Nicole and Dani had given him "icy hugs" on his way out, but Kaysar said he wanted to "spice things up a bit" because the game had become "too friendly" and "boring."

Kaysar was also shocked to learn his supposed ally, Memphis, had created and was a member of the core alliance.

"Wow, that is a shocker. No wonder he kept saying, 'There's nothing going on in this house.' That's incredible. That's a huge blindside," Kaysar said.

And finally, Kaysar revealed he returned to Big Brother: All-Stars as "a call to duty" to "make a difference" in regards to all the "pain and division" in the world. Kaysar said it was never about the money for him, and Julie thanked him for speaking from his heart.

The season's fifth Head of Household competition then commenced in the BB backyard, and Julie told the group there would be no Have Nots in the next week.

The competition dubbed "Filter Face-Off" required the participating houseguests to face off at a podium two at a time, where they would see the faces of all 16 BB All-Stars with filters allied to the faces.

Julie asked questions about the filters, and the answers were "More," "Exactly," or "Less."

The first person to ring in with the correct answer would win the round, eliminating his or her opponent. A round's winner would also choose the next two houseguests to face off.

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If the first person to buzz in answered incorrectly, the opponent would take the point and stay in it.

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The final matchup was between Christmas and Da'Vonne, and Christmas was crowned champion and the new HoH. Christmas became the first female HoH of this All-Stars season.

The episode concluded with Julie teasing a new "BB Basement" twist in which a competition played completely in the dark will reveal three new game-changing powers.