On Day 1, twelve HouseGuests entered the house. Following introductions, the HouseGuests learned of the season's twist, in which they would be playing as members of common high-school cliques. Despite this, HouseGuests continued to play the game as individuals and competed in competitions as individuals, were nominated as individuals, and were evicted as individuals. They also learned that if a member of their clique won Head of Household, they could not be nominated for eviction. Upon entering the backyard to compete in their first Head of Household competition, the HouseGuests learned what cliques they were placed in. HouseGuests Jeff, Natalie, and Russell were in the Athletes clique, while Chima, Michele, and Ronnie were in the Brains clique. Casey, Kevin, and Lydia were placed in the Offbeat clique, leaving Braden, Jordan, and Laura in the Popular clique. Following this, HouseGuests competed in "The Wedgie" Head of Household competition. For this competition, HouseGuests wore a pair of over-sized underwear and held onto a toilet seat while being suspended by the underwear. The last HouseGuest remaining in the air would earn a fourth member for their clique, with this person becoming the first Head of Household of the season. The four eligible HouseGuests to enter the game were former HouseGuests
Michael "Cowboy" Ellis for the Offbeat clique,
Jessica Hughbanks for the Popular clique,
Brian Hart for the Brains clique, and
Jessie Godderz for the Athletes clique. Natalie and Russell were the last two HouseGuests remaining, thus earning immunity and a fourth clique member; Jessie entered the house as their fourth member and became the first Head of Household of the season. Jessie's entrance brought the number of HouseGuests to thirteen. In an attempt to keep himself safe, Ronnie and Jessie formed an alliance between the Brains clique and the Athletes clique. Hoping to hide their alliance, Jessie and Natalie proposed that Ronnie be nominated as a pawn, but he refused. On Day 4, HouseGuests competed in the "Big Brother Rave" Have-Not competition. The Brains clique lost, meaning Chima, Michele, and Ronnie were the Have-Nots for the week. This greatly upset Chima, who stated on numerous occasions afterwards that she was debating walking from the game. Jessie took an immediate dislike to Laura and hoped to put her up, though his clique members attempted to convince him that Lydia should be evicted that week. Due to Ronnie refusing to be nominated as a pawn, Chima agreed to be the pawn. On Day 5, Jessie nominated Chima and Lydia for eviction, with Lydia his target for eviction. Worried they might not have the votes to keep Chima, Jessie and Russell formed an alliance with Laura in an attempt to get her to evict Lydia. When picking players for the Power of Veto competition, Russell, Natalie, and Jeff were selected to compete for the Power of Veto; Casey was selected to host. On Day 7, HouseGuests competed in the "Pop Goes the Veto!" Power of Veto competition. Russell was the winner of the Power of Veto with “shotgun.” Following the competition, Jeff engaged in numerous arguments with Russell and Natalie, causing a rift in their clique. In an attempt to save herself, Lydia tried to convince Russell and Jessie to backdoor Braden by taking her off the block as a way to hurt Jeff. Russell told Ronnie that this was the plan, with Ronnie telling Braden, Jeff, and Jordan about the plan. On Day 9, Russell used the Power of Veto to remove Lydia from the block, with Braden nominated in her place. Following Braden's nomination, Jordan and Laura began campaigning to get the votes for him to stay and appeared to have themselves, Casey, Jeff, Michele, and Ronnie in agreement; Ronnie, however, was playing both sides and had no intention of keeping Braden in the game. On Day 12, Braden became the first HouseGuest to be evicted from the house when Jessie cast the tie-breaker vote in Chima's favor. Following Braden's eviction, HouseGuests competed in the "Most Likely To..." Head of Household competition. Ronnie was the winner. Following the eviction, those who evicted Chima speculated that Ronnie had been the HouseGuest to change his vote, though he denied this and blamed Michele. Laura, one of the first to realize that Ronnie had changed his vote, attempted to turn the other HouseGuests against him, though Chima and Natalie informed Ronnie of this. On Day 13, HouseGuests competed in the "Who Knows The Ugly Truth?" luxury competition. Casey and Chima won and chose the Popular clique, consisting of Jordan and Laura, to be the Have-Nots for the week. Later that day, Ronnie nominated Jeff and Laura for eviction. Ronnie revealed his intention to backdoor Russell that week, though his alliance felt as though Russell would have the votes to stay. Following a confrontation between Lydia and Russell, Lydia and Kevin approached Ronnie about backdooring Russell, and Natalie debated turning on him as she felt he placed a target on her back. Russell, Natalie, and Casey were selected to compete for the Power of Veto; Lydia was selected to host. On Day 14, HouseGuests competed in the "Big Brother Mint" Power of Veto competition. Jeff was the winner. Despite initially planning on nominating Russell after the Power of Veto was used, Ronnie began to see Laura as a bigger threat, feeling she was smart enough to figure out his plans. On Day 16, Jeff used the Power of Veto to remove himself from the block, with Jordan being nominated in his place. When Ronnie lied and stated that Russell was campaigning to keep Laura in the game, he was confronted by the majority of the HouseGuests and accused of lying and playing both sides of the house. Following these events, Russell followed Ronnie around the house calling him names and taunting him for days. On Day 19, Laura became the second HouseGuest to be evicted from the house in a vote of eight to one. Following Laura's eviction, HouseGuests competed in the "Buzzworthy" Head of Household competition. Jessie was the winner. Though numerous HouseGuests expected Ronnie to be nominated that week, Jessie informed Natalie and Russell that he would be making his own decisions, rather than listening to the other HouseGuests. Natalie and Russell, fearing he would come after them, suggested that Casey should be targeted. On Day 20, HouseGuests competed in the "Back Yard Bash" Have-Not competition. The Brains clique, consisting of Chima, Michele, and Ronnie, were the Have-Nots for the week. Later that day, Jessie nominated Jordan and Michele for eviction, with the intention of seeing Casey evicted. Despite Jessie's nominations, Casey, Jeff, Jordan, and Michele were under the impression that Ronnie was the target for eviction rather than Casey. When picking players for the Power of Veto competition, Jeff, Casey, and Chima were selected to compete; Natalie was selected to host. On Day 21, HouseGuests competed in the "When Pigs Fly" Power of Veto competition. Michele was the winner. On Day 23, Michele used the Power of Veto to remove herself from the block, with Casey being nominated in her place. On Day 26, Casey became the third HouseGuest to be evicted from the house in a vote of seven to one. Following Casey's eviction, the HouseGuests learned that the "Cliques" twist had ended and all HouseGuests were playing the game as individuals. They also learned that the viewers would select one HouseGuest to win an unspecified "Mystery Power.” The ten remaining HouseGuests then competed in the "Big Brother Graduation" Head of Household competition. Russell was the winner. Jordan, as part of a twist in the competition, had to select three HouseGuests to be Have-Nots for the week; she chose Jessie, Kevin, and Natalie. Though the two initially had a feud, Jeff and Russell later aligned with one another. On Day 27, Russell nominated Lydia and Ronnie for eviction, with Ronnie being his main target. Though Russell was adamant about seeing Ronnie evicted, Chima, Jessie, and Natalie hoped to see Lydia evicted instead. When picking players for the Power of Veto competition, Jessie, Kevin, and Michele were selected to compete; Chima was selected to host. On Day 28, HouseGuests competed in the "Vini Vidi Veto" Power of Veto competition. Michele was the winner of the Power of Veto. On Day 30, Michele chose not to use the Power of Veto on either nominee. Following this, Jeff learned that he had won the power of the "Coup d'Etat", in which he could overthrow the Head of Household and make his own nominations on the spot; this power could only be used at the next two evictions, and the current Head of Household and Power of Veto holder were unable to be nominated. On Day 33, Ronnie became the fourth HouseGuest to be evicted from the house in a vote of four to three. Following Ronnie's eviction, HouseGuests competed in the "Say what?" Head of Household competition. Chima was the winner. On Day 34, HouseGuests competed in "The Goods" luxury competition. The team of Chima, Jordan, Jessie, Natalie, and Russell won the competition, meaning Jeff, Kevin, Lydia, and Michele were the Have-Nots for the week. Later that day, Chima nominated Lydia and Russell for eviction. When picking players for the Power of Veto competition, Jeff, Kevin, and Natalie were selected to compete; Michele was selected to host. On Day 35, HouseGuests competed in the "BB Farm" Power of Veto competition. Kevin was the winner. On Day 37, Kevin chose not to use the Power of Veto. On Day 40, Jeff used the Coup d'État, thus overthrowing Head of Household Chima. He removed Lydia and Russell from the block, replacing them with Jessie and Natalie. Due to using the Coup d'État, Jeff was ineligible to vote during this eviction, as was Chima. Jessie then became the fifth HouseGuest to be evicted from the house in a vote of three to two. He became the first member of the Jury of Seven. Following Jessie's eviction, HouseGuests competed in the "Hit the Road" Head of Household competition. For this competition, HouseGuests faced off two at a time and were asked questions about past competitions played this season; the winner of each round would select the next two HouseGuests to face off, with the last HouseGuest remaining being the winner. Michele was the winner. On Day 41, HouseGuests competed in the "Chaosserole" Have-Not competition. The HouseGuests earned food for every day of the week except Monday. Though the house was split, the HouseGuests were unsure of which side Michele would stay with; she later aligned herself with Jeff, Jordan, and Russell and stated that she hoped to see Chima evicted. Later that day, Michele nominated Chima and Natalie for eviction. Though she had often disregarded the rules for the show, Chima began to break rules more consistently following Jessie's eviction, including covering up cameras, refusing to go to the Diary Room, and not wearing her microphone. Early on Day 42, Chima broke further rules when she refused to wear her microphone and later threw it into the Jacuzzi when Kevin brought her microphone to her. Following this, Chima refused to take an exchange microphone from the storage room. Following further refusal to enter the Diary Room, producer
Allison Grodner spoke through the intercom and convinced Chima to come to the Diary Room. Hours later, the remaining HouseGuests learned that Chima had been expelled from the game. On Day 43, the HouseGuests learned that Michele's duty as Head of Household had been nullified as Chima was one of Michele's nominations, and that a new Head of Household competition would take place later that day. Following Chima's expulsion, HouseGuests competed in the "BB Invitational Golf Tournament" Head of Household competition. When a HouseGuest was eliminated, they could claim a prize, one of which was the Head of Household position. Jordan was the winner. On Day 44, Jordan nominated Lydia and Natalie for eviction. Shortly afterwards, Kevin, in an attempt to save himself and his allies, lied to Jeff and claimed that he had heard Russell stating he would evict Jeff the following week; Jeff told Jordan, and the two believed him. When picking players for the Power of Veto competition, Jeff, Kevin, and Michele were selected to compete. On Day 47, HouseGuests competed live in the "Before or After" Power of Veto competition. Minutes later, she chose not to use the Power of Veto. Lydia then became the sixth HouseGuest to be evicted from the house in a vote of three to one. She became the second member of the Jury of Seven. Following Lydia's eviction, HouseGuests competed in the "Can Do" Head of Household competition. Jeff was the winner. With the fewest cans in their tubes, Michele and Russell became the Have-Nots for the week. Owing to the lie that Kevin had told Jeff, both Jeff and Jordan hoped to see Russell evicted. In an attempt to save themselves, Kevin and Natalie made a deal to get to the final four with Jeff and Jordan, and Jeff told them he would nominate them as pawns in an attempt to backdoor Russell. On Day 48, Jeff nominated Kevin and Natalie for eviction. Though Jeff continued to assure Michele and Russell that the plan was to evict Kevin, the two became suspicious that the plan was to backdoor one of them. On Day 49, HouseGuests competed in the "Otev the Ape" Power of Veto competition. Jeff was the winner of the Power of Veto. On Day 51, Jeff used the Power of Veto to remove Kevin from the block, with Russell being nominated in his place. Following his nomination, Russell engaged in numerous arguments with his fellow HouseGuests. On Day 54, Russell became the seventh HouseGuest to be evicted from the house in a vote of three to zero. He became the third member of the Jury of Seven. Following Russell's eviction, HouseGuests competed in "The S'more, the Merrier" Head of Household competition. Kevin was the winner. Despite making a deal with him the previous week, Kevin and Natalie made a plan to backdoor Jeff as they saw him as their biggest threat. Though this was his plan, Kevin and Natalie also debated taking out Michele, and thus feared that Jeff could win the Power of Veto and save Jordan if she were nominated; should Jeff use the Power of Veto on Jordan, it would force Kevin to nominate Natalie for eviction. On Day 55, Kevin nominated Jeff and Michele for eviction. Later that day, Kevin discovered a secret room in the Head of Household bedroom known as Pandora's Box; upon entering the room, he discovered a box and learned that placing his hand inside the box would release $10,000 into the house. He did so and became locked inside the box while the money fell into the backyard; the HouseGuests were able to keep the money and were required to find a key to unlock Kevin from the room. On Day 56, HouseGuests competed in the "Morphomatic" Power of Veto competition. Michele was the winner of the Power of Veto. On Day 58, Michele used the Power of Veto to remove herself from the block, with Jordan being nominated in her place. On Day 61, Jeff became the eighth HouseGuest to be evicted when Kevin cast a tiebreaker vote in Jordan's favor. He became the fourth member of the Jury of Seven. Following Jeff's eviction, HouseGuests competed in the "Fact or Fiction" Head of Household competition. Natalie was the winner. That night, HouseGuests competed in the "Big Brother Shopping Spree" luxury competition. On Day 62, Natalie was presented with Pandora's Box and learned that her boyfriend was inside; however, if she chose to enter and see him, she would give up her right to compete in the final Power of Veto competition; she accepted the offer and entered Pandora's Box. Despite this, she lied to her fellow HouseGuests about what had happened. Later that day, Natalie nominated Kevin and Michele for eviction. On Day 63, HouseGuests competed in the "There Ain't No Party Like A Veto Block Party" final Power of Veto competition. Kevin was the winner of the final Power of Veto. On Day 66, Kevin used the Power of Veto to remove himself from the block, with Jordan being nominated in his place. Minutes later, he cast the sole vote to evict Michele from the house. She became the fifth member of the Jury of Seven. Following Michele's eviction, the final three HouseGuests began competing in the first part of the final Head of Household competition, "Log Jam." Jordan and Natalie were the only two HouseGuests to compete in the second round, which determined who would face Kevin in the final round. In the second round, called "Heads Will Roll", each HouseGuest entered the backyard alone with a giant game table with the numbers one through ten. Each player used balls with names of previous Head of Household winners and placed the ball with the correct name into the hole that corresponded with the numerical order in which they reigned. There were two possible answers, and the players had to guess the correct ending by picking A or B. Jordan was the winner, becoming the final Head of Household of the season. Jordan was crowned the winner of
Big Brother 11 in a vote of five to two, with Chima's vote being replaced with a vote from the viewers. ==Episodes==