After visiting the temples of Siem Reap, the 20 returning castaways were divided into two tribes: Bayon and Ta Keo.

• Reward challenge: The tribes ransacked a boat for supplies and loaded them onto a raft. They then paddled their raft to a second boat 100 yards away; the first player to reach the second boat won an extra bag of rice for their tribe.

Woo won the rice for Ta Keo. At Ta Keo, some immediately began setting up camp, while others started strategizing. Vytas, as in his original season, tried to form bonds with the women, which Shirin noticed, and began targeting him for his perceived smugness. He later irritated the other younger women while trying to teach them yoga. Abi-Maria lost her bracelet, which she later found in Peih-Gee's bag; though she told the rest of her tribe that she was wary of Peih-Gee, Peih-Gee was able to clear the air. Jeff Varner and Peih-Gee found themselves caught between the "old school" players who set up the camp's shelter—Kelly Wiglesworth, Terry, Vytas, and Woo—and the "new school" strategists—Abi-Maria, Kelley Wentworth, Shirin, and Spencer. Wentworth found a clue to a hidden immunity idol, which revealed its exact location in the structure of the upcoming immunity challenge.

Upon arriving at the Bayon camp, Jeremy quickly made alliances with Andrew, Keith, Joe, and Tasha. Joe earned his tribemates' admiration, particularly Andrew's, by making fire without flint, while Stephen struggled with camp setup. He later searched for a hidden immunity idol, but was unsuccessful, and his absence from camp was noted by the rest of his tribe.

• Reward/Immunity challenge: The tribes guided a lit raft through shallow water, lighting torches on their path with a fire on the raft. Upon reaching shore, the tribe set down their rafts at a gate; one tribemate crafted a pole of sticks and twine to reach through the gate to retrieve a key. The first tribe that unlocked their gate and set the final torch ablaze won immunity and a fire-making kit. The challenge was based on "Quest for Fire," the first challenge from Borneo, the first season.

Joe retrieved the key first for Bayon, and they won the challenge. While her Ta Keo tribemates were distracted, Wentworth was able to retrieve the hidden immunity idol. Ta Keo was immediately sent to Tribal Council, with no time to scramble. At Tribal Council, the old-schoolers targeted Abi-Maria for her volatility at camp, while the new-schoolers targeted Vytas. Jeff Varner and Peih-Gee aligned with the new-schoolers, and Vytas was the first player voted out.

Though he voted with the new-schoolers to eliminate Vytas, Jeff Varner conspired with the old-schoolers to target Shirin and Spencer for their cunning. Abi-Maria's abrasive social behavior alienated her from her tribe; after she overheard Peih-Gee and Shirin talking negatively about her, Abi-Maria confronted Peih-Gee, and the argument resulted in their alliance making fun of Abi-Maria. A vulnerable Abi-Maria was comforted by Terry, and the two aligned. The next morning, Abi-Maria and Jeff Varner solidified their plans to switch to the old-school alliance, putting them in power.

On Bayon, Joe solidified his role as the tribe's provider, but his skills made him a target of Stephen's. Andrew tearfully recounted meeting his now-wife, which prompted Jeremy—missing his pregnant wife—to wander off. After Stephen speculated that Jeremy was looking for a hidden immunity idol, Andrew comforted Jeremy and discussed targeting Stephen for constantly thinking about the game.

• Reward/Immunity challenge: The tribes raced up and down three A-frames carrying ropes, then four members used them to pull a heavy wooden crate filled with puzzle pieces across a ramp. Two tribemates then used the pieces to solve a puzzle; the first pair to complete it won immunity and camp tools for their tribe. Yank Yer Hank challenge from Samoa.

Bayon won the challenge. Back at camp, the now-strengthened old-school alliance recruited a reluctant Kelley Wentworth and Peih-Gee to split up Shirin and Spencer. Though Shirin apologized to Abi-Maria for not defending her when she was being made fun of, Abi-Maria refused to deviate from the plan. At Tribal Council, both Shirin and Spencer pleaded to their tribemates to save them; ultimately, Spencer was spared as Shirin was voted out.

The morning after Shirin's elimination, the tribes were redistributed from two to three. Jeremy, Kimmi, Monica, and Stephen were joined by Kelly Wiglesworth and Spencer on Bayon, while Kelley Wentworth and Terry were joined by Ciera, Joe, Kass, and Keith on Ta Keo. Abi-Maria, Andrew, Jeff Varner, Peih-Gee, Tasha, and Woo formed the new Angkor tribe, and had to build a new camp from scratch.

At Angkor, the tribe struggled with building another camp amidst the harsh weather. Though Andrew and Tasha were in the minority as the only former Bayon members, they made individual deals with their new tribemates to protect them at the merge, and also noticed the tension between Abi-Maria and Peih-Gee. Ta Keo celebrated their tribe strength, but Wentworth campaigned against Terry, the only other retained Ta Keo member. At Bayon, Spencer attempted to build social relations with his new tribe, and succeeded with Jeremy. Jeremy found the clue to an idol hidden at the upcoming immunity challenge.

• Immunity challenge: The tribes pushed a wagon across an obstacle course, and retrieved three keys from tall posts to unlock three trunks with puzzle pieces inside, and put the trunks on the wagon. After getting all three trunks, the tribes disassembled the wagon and pushed the wagon and trucks either through or over a fence, then climb over the fence themselves. They then re-assembled the wagon, put the trunks back on board, and dragged the wagon through more obstacles. Once at the finish, two tribe members used the pieces to assemble a vertical puzzle. The first two tribes to finish won immunity. Draggin' the Dragon challenge from Cagayan.

Jeremy snagged Bayon's idol during the challenge. Ta Keo held onto their lead to place first, with Bayon placing second. After losing the challenge, Jeff Varner attempted to send a message to Wiglesworth on Bayon, but Tasha caught him and called him out. Jeff Varner then revealed that Andrew and Tasha had made multiple deals with the former Ta Keo members. Back at Angkor, the former Ta Keo members tried to stay strong against Andrew and Tasha, who targeted Jeff Varner; however, Abi-Maria decided to align with the former Bayon members, which provoked Peih-Gee, and each of the two tried to rally support to eliminate the other. At Tribal Council, Andrew and Tasha aligned with Abi-Maria and Jeff Varner, and they sent Peih-Gee home.

After returning from Tribal Council, Jeff Varner proclaimed his loyalty to his tribemates, but Tasha continued to campaign against him. Abi-Maria confronted Woo for voting against her twice. At Bayon, Jeremy lied to Stephen about finding the idol.

• Reward challenge: One representative per tribe raced out into the water to retrieve one of three sandbags, and then jumped on a plank like a seesaw to launch it into a net above them. The first to get all three sandbags into the net tribe won a grill, wok, sausages, and spices for their tribe, while the runner-up's tribe received a wok and vegetables. Walk on Water challenge from Samoa.

Savage won the challenge for Angkor, Terry placed second for Ta Keo, and Jeremy lost for Bayon. At Ta Keo, Kass made Kelley Wentworth a necklace as a belated birthday gift in an attempt to rehabilitate her previous, cutthroat image. On Bayon, Spencer told his new tribemates to get rid of Kelly Wiglesworth for her connections from the old Ta Keo tribe, but Monica did not trust him.

• Immunity challenge: One castaway from each tribe worked as a caller to direct their blindfolded tribemates in collecting 16 large puzzle pieces from a field. Once all of the puzzle pieces were collected, the entire tribe worked together to assemble the puzzle. The first two tribes that completed their puzzle won immunity. Blind Leading the Blind challenge from All-Stars and Heroes vs. Villains.

During the puzzle solving, Jeff Varner dropped a puzzle piece on his toe. Bayon finished first, followed by Ta Keo. Abi-Maria, Andrew, and Tasha affirmed their majority alliance, but while Andrew and Tasha tried to target Jeff Varner for being both a physical liability and a threat to Abi-Maria's loyalty to them, Abi-Maria wanted to vote out Woo for having previously voted against her. At Tribal Council, both Jeff Varner and Woo pledged loyalty to the majority alliance, but they chose to eliminate Jeff Varner unanimously.

At Bayon, Monica argued with Kimmi about taking too many clams from the ocean, which led to Kimmi complaining about Monica to Stephen.

• Reward challenge: Three tribemates rolled a fourth in a barrel to three flagpoles to unspool bags of balls. Once all of the bags were retrieved, one tribemate rolled the balls up a ramp and into six targets. The first tribe to have a ball in all six targets won fruit, juice, chairs, pillows, blankets, a hammock, a tarp, and candles, while the second-place tribe won a tarp. Barrel of Monkeys challenge from Blood vs. Water.

Ta Keo placed first, with Angkor in second. Back at Ta Keo, the entire tribe aligned, except for Terry. At Bayon, Jeremy and Spencer continued to bond. On Angkor, Woo earned sympathy from Andrew and Tasha after telling them about his mother's heart transplant, but Abi-Maria was annoyed by the perceived tactic.

• Immunity challenge: The tribes raced up a tower and through a series of obstacles. At the top, one tribemate at a time launched sandbags from a catapult toward targets on the field below. The first two tribes to hit all five of their targets won immunity. Gone Shootin' challenge from Worlds Apart.

Angkor finished first, followed by Ta Keo. The four original Bayon members chose to target Kelly Wiglesworth over Spencer. Monica tried to recruit Kimmi for a women's alliance, targeting Spencer; Kimmi told Jeremy and Stephen about Monica's plan. Ultimately, Monica was betrayed by Jeremy, Kimmi, and Stephen for being unreliable, and she became the fifth person voted out.

Host Jeff Probst visited the Ta Keo camp to inform Terry that his son Danny had been hospitalized, and Terry was subsequently pulled from the game to be with his family. The next morning, the tribes were shuffled again: the new Bayon tribe was composed of Jeremy, Joe, Keith, Kelley Wentworth, Kimmi, Stephen, and Tasha, while Abi-Maria, Andrew, Ciera, Kass, Kelly Wiglesworth, Spencer, and Woo formed the new Ta Keo tribe. Kass and Spencer, nemeses on their original season, were reunited, and Wentworth found herself the sole original Ta Keo tribemate with six original Bayon members.

• Reward challenge: Castaways went head-to-head against a member of the other tribe, sliding down a slippery narrow path to retrieve a ring. The first player to throw their ring onto a post won a point for their tribe; the first tribe to three points won a picnic with chicken, mac and cheese, and brownies. Slide Show challenge from One World.

Wiglesworth beat Wentworth in the final round to win the challenge for Ta Keo. On Ta Keo, Andrew brought together his Angkor allies Abi-Maria and Woo and original Bayon tribemates Ciera and Kass to target Spencer. Andrew told his alliance that they would tell Spencer that Ciera was the target, which alarmed her. At Bayon, Joe promised Wentworth—his ally from Ta Keo—that he would try to keep her safe, and targeted Kimmi. Stephen ratted Joe out to Jeremy and Tasha and campaigned to eliminate him, but Jeremy was reluctant to do so.

• Immunity challenge: Each tribe sent an equal number of representatives in a race to eat local Cambodian delicacies. The first tribe to have all their representatives finish won a point for their tribe; first tribe to four points won immunity. Pesky Palate challenge from multiple seasons, including Borneo, The Australian Outback, Pearl Islands, and Blood vs. Water.

Tasha defeated Kass in the final round to win immunity for Bayon. Back at Ta Keo, Andrew's alliance confirmed their plan to target Spencer with Ciera as the decoy, but Ciera was frightened that Andrew's true allegiance was with Woo over his original Bayon tribe, and convinced Abi-Maria and Kass to target Woo. Kass decided—though she wanted Spencer gone—that Woo was the more pressing threat, and alerted Spencer to Andrew's plan. At Tribal Council, Abi-Maria, Ciera, and Kass teamed up with Spencer to vote Woo out.

Months after Terry returned home, his son received a successful heart transplant.

The morning after Woo's elimination, Andrew believed that Kass' betrayal proved that she was no longer loyal to the original Bayon tribe. Later that morning, the tribes unexpectedly merged, forming Orkun, the largest tribe in Survivor history at 13 members. Andrew and Jeremy rekindled their original Bayon alliance with Kimmi, Stephen, and Tasha, with the addition of Kelly Wiglesworth, while Kass and Kelley Wentworth attempted to reform their alliance from the second Ta Keo tribe, securing Ciera and bringing Abi-Maria into the fold. Both alliances vied for the votes of Joe and Keith, who had been in both initial alliances, and Spencer, who had no solid allies; Joe and Spencer teamed up to determine their allegiance for the upcoming vote.

To secure the majority, Kass attempted to strategize with Tasha, but Tasha lied to her about the Bayon alliance as vengeance for Kass betraying her in their original season. Kass caught on to Tasha's deception, and tried to patch things up the next morning. Tasha admitted that she did not trust Kass, and the two discussed their feud in front of the rest of the tribe. Ciera then lied to Jeremy and Joe, telling them that Andrew and Woo had discussed getting rid of them.

• Immunity challenge: Castaways stood on a beam while balancing a ball on a pole, held with one hand. After 10 minutes, the remaining contestants moved their feet to a narrower section and lowered their hand down the pole. After another 10 minutes, those still in the challenge moved to the narrowest section with their hand at the bottom section of the pole. The last castaway with their ball still balanced on the pole won immunity. Hard to Handle challenge from Cagayan.

Joe outlasted Spencer to win individual immunity. Joe, Keith, and Spencer sided with the Bayon alliance and the nine decided to split the vote between Ciera and Kass in case of a hidden immunity idol. The alliance of Abi-Maria, Ciera, and Kass correctly deduced that the others were going to split the vote, and attempted to get Spencer to join them in voting against Tasha, which would send her home. At Tribal Council, Ciera and Kass' alliance crumbled, and Kass became the first member of the jury.

Though Andrew and Jeremy celebrated Kass' elimination and planned to target the minority alliance of Abi-Maria, Ciera, and Kelley Wentworth, Stephen plotted with Ciera to betray his alliance and blindside Joe.

• Reward challenge: Divided into two teams of six, the castaways paddled out into the ocean to retrieve four large puzzle cubes with colored sides. Once all four pieces were returned to the beach, the castaways had to stack the cubes such that there would be no repeating colors on each side. The first team that solved their puzzle won an afternoon at a café to enjoy coffee and desserts. Rove, Rove, Rove Your Boat challenge from Blood vs. Water.

The team of Ciera, Keith, Wentworth, Kelly Wiglesworth, Kimmi, and Joe won the challenge. On the reward trip, Ciera discussed trying to break up Andrew, Jeremy, Stephen, and Tasha, which piqued Joe's interest. Back at camp, Stephen talked to Jeremy, Spencer, and Tasha about getting rid of Joe unless he won immunity again, but Andrew overheard him, and ratted Stephen out to Joe upon the latter's return from the reward trip.

• Immunity challenge: The castaways balanced a ball on a disc attached to knotted ropes, moving their hands down a knot every 10 minutes to increase difficulty. After 30 minutes, a second ball was added. Castaways were eliminated when a ball fell off their disc; the last player with all of their balls remaining won immunity. Take the Reins challenge from San Juan del Sur.

Joe outlasted Keith to win immunity again, foiling Stephen's plan. Andrew and Joe recruited Wiglesworth and the minority alliance to eliminate Stephen, but Jeremy attempted to veto their plan because of Stephen's loyalty to him throughout the pre-merge, and tried to keep the target on the minority alliance. At Tribal Council, Ciera and Wentworth implored the majority alliance to jump ship and target the alliance's core, but they held strong and all voted against Wentworth, opting not to split the vote. However, Wentworth played her hidden immunity idol, and Andrew was eliminated with the minority alliance's three votes.

After Kelley Wentworth's successful idol play, the majority alliance scoured the camp looking for a replacement idol, while Abi-Maria, Ciera, and Wentworth—collectively referred to by all as “the Witches”—continued to look for divisions in the majority alliance.

• Reward challenge: Divided into two teams of five, each team assembled a staircase out of wooden poles, then climbed it to reach a bamboo maze. Upon exiting the maze and sliding down bamboo, one tribe member maneuvered a key through a rope obstacle and then used it to unlock a machete to release puzzle pieces. Two more tribe members then solved a puzzle to reveal the solution to a combination lock. The first tribe that unlocked their flag won a day trip to a spa. Styx challenge from Cagayan.

Abi-Maria was not chosen to compete. The team of Jeremy, Keith, Wentworth, Kelly Wiglesworth, and Kimmi struggled assembling their poles, allowing Ciera, Joe, Spencer, Stephen, and Tasha to coast to an easy victory. Ciera tried to convince the others on the reward trip to make a move against Jeremy but, back at camp, Jeremy found a clue to another hidden immunity idol. The clue told Jeremy the idol's exact location outside of camp, but required him to go there that night, after the challenge winners returned from the spa; he did so, and found his second hidden idol. Stephen later noted the bond between Joe and Wiglesworth, and conspired with the Witches to vote together at the upcoming Tribal Council to split them up.

• Immunity challenge: The castaways stood barefoot on wooden slats on an a-frame, floating in the water, trying to remain balanced. After 10 minutes, the castaways moved up to a second set of slats, closer together; after another 10 minutes, the castaways moved to the top of the a-frame. After another 10 minutes, the castaways had to stand on one foot until one person remained, who would then win immunity. Bermuda Triangles challenge from Caramoan and Cagayan.

During the challenge, host Jeff Probst revealed buoys in the water; the first castaway to touch their buoy would win an advantage in the game, but all who jumped off forfeited their shot at immunity. Spencer and Stephen jumped off, and Stephen edged out Spencer to win the advantage. Joe outlasted Abi-Maria to win his third consecutive immunity challenge. Stephen's advantage was that he had the right to “steal” another player's vote at any Tribal Council until the final five,^[37] prohibiting them from voting, while allowing him to vote twice. While the majority alliance decided to split their votes between Ciera and Wentworth, with the latter as the main target, Stephen tried to convince Jeremy and Spencer to join him and the Witches to vote against Wiglesworth. Though they were initially hesitant to risk alienating the rest of their alliance, they followed through with Stephen's plan at Tribal Council, and Wiglesworth became the third member of the jury.

Though Jeremy, Spencer, and Stephen voted against Kelly Wiglesworth, they assured the rest of their alliance that they were still with them against the Witches, chalking their decision up to the strategy of forming temporary "voting blocs" that justified different factions teaming up from vote to vote.

• Reward challenge: Divided into two teams of five, three castaways from each team faced off against each other in a river to retrieve a ball and throw it into their team's net to score a point. The first team to score three points won a feast and a trip to a Cambodian circus. Basket Brawl challenge from Tocantins.

Abi-Maria, Ciera, Joe, Spencer, and Tasha won the challenge. While Ciera led the charge on the reward trip to target Stephen because of his advantage, the castaways back at camp discussed targeting Joe once his immunity streak ended. The rain continued to take its toll on the castaways, deteriorating their mental and physical health. Before the immunity challenge, host Jeff Probst gave the castaways the chance to forfeit the challenge in exchange for an enhanced shelter with a waterproof roof, courtesy of a construction crew, provided at least five players chose to forfeit. The castaways made their choice without being able to consult each other; only Joe and Keith opted to compete, giving the tribe the enhanced shelter.

• Immunity challenge: The castaways balanced on a block with one foot while stabilizing a ball against a hanging piece of wood. If a castaway fell off or dropped their ball, they were eliminated; the last player remaining won immunity. Ballin' A Jack challenge from San Juan del Sur.

Joe beat Keith to win immunity again. Jeremy, Kimmi, and Stephen decided to target Ciera as the most dangerous of the Witches, but the Witches recruited Joe, Keith, Spencer, and Tasha to blindside Stephen, with two votes on Kimmi in case of Stephen's advantage. Joe, Spencer, and Tasha told Jeremy of the plan; though he tried to dissuade them, they followed through with the Witches' plan at Tribal Council. However, Jeremy played one of his idols on Stephen, negating the five votes against him, and Ciera was eliminated with Jeremy, Kimmi, and Stephen's votes. After saving Stephen, Jeremy told Spencer that he would do the same for him.

Back at camp, Jeremy reiterated to Spencer that he would have saved him as he did Stephen, but Spencer was uncertain.

• Reward challenge: Jeff told the castaways a story about Cambodian history. The castaways then ran through a maze to one of five stations, each with a question about the story. Each station had three bags of medallions wrapped in cloth that corresponded to possible answers; the correct answer had golden medallions, whereas incorrect ones had wooden medallions. The first castaway to retrieve all five gold medallions won a trip by helicopter to a resort on another island, where they would enjoy a feast. Folklore challenge from Borneo and Africa.

During the challenge, Kelley Wentworth found a hidden immunity idol clue packaged with a medallion. Stephen edged out Spencer to win, and took Jeremy and Tasha with him on the trip. Though Tasha had voted against Stephen in the previous Tribal Council, Stephen told her and Jeremy about his vote stealing advantage, and the three reaffirmed their alliance. Back at camp, Abi-Maria, Joe, Keith, Kelley, and Spencer decided to align against the reward-goers and Kimmi. Kelley's clue told her that an immunity idol was hidden underneath the newly-rebuilt shelter, and she retrieved it when everyone else was out of the camp.

• Immunity challenge: Only using their feet, the castaways would unspool a rope to release a pile of blocks and then, still only with their feet, stack the blocks into three rows on a rotating circular platform. The first castaway to stack three rows and then place a flag in the center of their platform would win immunity. The Game is Afoot challenge from San Juan del Sur.

Spencer won the challenge, ending Joe's immunity streak. With Joe eligible to be voted against for the first time all game, Stephen spearheaded the effort to eliminate him, but Joe's new alliance of five—including Spencer, unbeknownst to Jeremy's alliance—decided to target Stephen again. At Tribal Council, Stephen used his advantage to steal Joe's vote, giving his bloc—him, Jeremy, Kimmi, and Tasha—five of the nine votes. However, believing Spencer to be with them, they split their votes between Abi-Maria and Joe in case of a hidden immunity idol, allowing Abi-Maria, Kelley, Keith, and Spencer to send Stephen to the jury with only four votes.

With four men and four women remaining, Kimmi organized a women's alliance between her, Abi-Maria, Kelley, and Tasha to eliminate Joe next and then take over the game. At the reward challenge, the castaways were visited by their loved ones: Abi-Maria's mother Vera; Jeremy's wife and San Juan del Sur castaway Val; Joe's father Pat; Keith's wife Dana; Kelley's father and San Juan del Sur castaway Dale; Kimmi's father Robert; Spencer's girlfriend Marcella; and Tasha's cousin Christina.

• Reward challenge: The castaways dug up dirt to unearth a rope, then untied three bags of puzzle pieces. They then spun around a post to unlock a fourth bag, and then brought the four bags across a balance beam, untying a fifth bag on the way. They then used the puzzle pieces to solve a vertical word puzzle; the first castaway to solve the puzzle got to bring their loved one back to camp to enjoy a barbeque.

Kelley won the challenge, and chose to share her reward with Abi-Maria, Joe, Keith, Kimmi, and their loved ones. While they enjoyed the feast, the three non-chosen castaways—Jeremy, Spencer, and Tasha—made a final three deal.

• Immunity challenge: The castaways held onto the bottom of a pole while balancing a wooden statue on top, while adding additional foot-long sections to the pole at regular intervals. The last man and woman remaining won immunity. Over-Extended challenge from Samoa.

Kelley won immunity for the women. Joe and Keith were the last men remaining; Joe passed out due to fatigue, though was cleared to remain in the game, and Keith won immunity. Though Joe had passed out during the challenge, the other castaways still targeted him for being a physical threat. Tasha told Jeremy and Spencer about the girls' alliance, and the two considered changing their target to Abi-Maria for her chaotic nature and to prevent the women from outnumbering the men. However, at Tribal Council, Jeremy and Spencer stuck to the original plan, and Joe was voted out.

When the final seven returned to camp, they realized that Keith was the only one who had not voted against Joe, having voted for Tasha instead, which set Tasha against Keith. Jeremy and Spencer continued to worry about a women's alliance.

• Reward challenge: Each castaway unspooled a rope until they felt they had enough slack to continue on the course. They then assembled a bridge by placing wooden poles in open slots across two beams. Once across, they threw sandbags to knock down a stack of blocks. The first to knock off all their blocks won a trip to the temples of Siem Reap, where they enjoyed a feast and a traditional Cambodian ceremony. Money Box challenge from San Juan del Sur.

Keith won the challenge, as he had in San Juan del Sur, and chose to bring Kelley and Spencer with him. On the trip, the three made a final three pact, and plotted to bring in Abi-Maria to secure the majority at the next Tribal Council. Back at camp, Abi-Maria, Jeremy, Kimmi, and Tasha discussed eliminating Keith; Jeremy was hesitant to eliminate another man, but Kimmi and Tasha assured him that there was no women's alliance. Later, Jeremy and Tasha asked Abi-Maria to leave so they could talk privately; she refused, which annoyed them, and they considered targeting her instead.

• Immunity challenge: The castaways raced out through an obstacle course in the water, then swam to retrieve a key; after crossing the course again to return to shore, they used the key to unlock five puzzle pieces. The first castaway that solved the puzzle won immunity. Troubled Water challenge from Vanuatu and Cook Islands.

Spencer solved the puzzle in a matter of seconds to win. Tasha became exhausted in the water and had to be rescued and treated by medical. Although she was shaken by the incident she was able to continue in the game. The reward challenge winners recruited Abi-Maria to vote against Tasha, whereas Jeremy, Kimmi, and Tasha switched their target from Keith to Abi-Maria due to the latter's volatility throughout the game. Both sides believed Spencer to be with them, but at Tribal Council, Spencer voted against Abi-Maria to send her to the jury.

Though Keith and Kelley thought they were next to go after the other four eliminated Abi-Maria, Kimmi decided to jump ship, and plotted with Kelley and Keith to convince the others to split the vote so the three of them could blindside Jeremy or Spencer.

• Immunity challenge: The castaways raced to assemble puzzle steps on a staircase. After correctly placing all the steps, the castaways then raced to the top to complete a sliding puzzle. The first player to solve their puzzle won immunity. Step on Up challenge from Thailand and Redemption Island.

Spencer maintained his lead to win immunity. While Kimmi secretly planned with Keith and Kelley to blindside Jeremy, Spencer and Tasha figured out her plan, though Jeremy was unconvinced. At Tribal Council, Spencer publicly revealed that he, Jeremy, and Tasha were not splitting the votes; Kelley played her hidden idol, but Jeremy countered by playing his. Both Jeremy and Kelley were targeted by the other alliance, and all votes were voided.

After a brief deliberation, in which Kimmi was admonished by her former alliance, the castaways re-voted, with Spencer, Jeremy, and Kelley immune. The second ballot was tied between Kimmi and Tasha. The four others told host Jeff Probst that they were not going to change their votes, thus the tie was deadlocked. Probst explained the rules: the four non-tied castaways had to unanimously decide to eliminate Kimmi or Tasha, or else the two tied would become immune; since Keith would then be the only one of the remaining four not immune, he would be eliminated by default. Jeremy and Spencer immediately said that they would not agree to eliminate Tasha, thus the only options were for Keith and Kelley to agree with them to eliminate Kimmi, or to disagree, which would eliminate Keith. Ultimately, Keith and Kelley chose the former, and Kimmi was eliminated.

• Immunity challenge: The castaways raced through obstacles to retrieve six bags of puzzle pieces. The first castaway to retrieve all six bags and solve the puzzle won immunity. Out on a Limb challenge from South Pacific.

Kelley defeated Keith to win immunity. Back at camp, Kelley made Keith a fake idol, and a paranoid Jeremy told Keith to vote against Spencer. At Tribal Council, Keith chose not to reveal the fake idol and Jeremy stayed loyal, sending Keith to the jury.

• Immunity challenge: The castaways, with one hand tied behind their back, dropped a ball into a metal chute, which traveled down a spiraling metal track and exited out of one of two points. The castaway would have to catch the ball and drop it back into the chute at the top. Every few minutes, an additional ball would be added to the track until seven balls were simultaneously going around the track. A turnstile gate in the middle of the track would rotate, causing the balls to alternate exiting out of the two exits. If a ball exited the track and was not caught, the castaway was eliminated; the last one remaining won immunity. Simmotion challenge from Tocantins.

Jeremy beat Spencer to win the final challenge. Kelley campaigned against Spencer at Tribal Council, and Spencer retorted that he would convince the jury to not vote for Jeremy to win if he took Kelley to the end. Jeremy honored his alliance with Spencer, and Kelley became the final member of the jury.

At the Final Tribal Council, Spencer and Jeremy were admonished for their respective actions in Kelley Wentworth and Kimmi's final Tribal Councils, while Tasha was asked to defend the perception that she did Jeremy's dirty work. When asked what their second chances were about and if they achieved that, Tasha said it was about building better relationships with her allies, Spencer said it was about maturing from Cagayan and developing interpersonal skills, while Jeremy stated that he was doing it for his family, including his unborn son, and that he struggled with keeping his wife's pregnancy a secret for the entire game.