The ultimate social experiment begins when seven beauties and seven geeks move into an enormous mansion in Los Angeles. After choosing teams, Brian explains the first challenge, where the women and the men must learn from each other to complete tasks. All of the contestants must rediscover the fifth grade; the women compete in a trivia contest, focusing on history, spelling, and geography. Meanwhile, the men learn dance moves from the women, who then must perform in front of a crowd of people, who judge who danced the best. Mindi and Richard win both of their challenges, ensuring them full immunity and giving them the power to nominate two other teams for elimination. At the elimination ceremony, Richard and Mindi send Eric and Cheryl and Joe and Erika to the elimination chamber, where Eric and Cheryl are eliminated.

Episode two brings strain to the game. some of the Geeks are already growing thin on the Beauties, and one pair in the house, Erika and Brad, begins a romance. The second set of tasks entails lots of oil the women must complete a series of tasks having to do with a car: popping the hood, and changing the oil, air filter, and a tire. The men are forced to brush up on massages. At the challenges, Chuck and Caitilin prosper, working as a team to win both. Fighting breaks out between the two because of Chucks inability to nominate anyone for elimination, but in the end, they decide on sending Erika and Joe and Brad and Scarlet to the elimination room. Erika and Joe lose the quiz, sending them home and ending the short-lived love between Erika and Brad.

The third set of tasks is one of the trickiest yet for both groups - the Beauties and the Geeks. The women must brush up on their rocket science and follow a series of instructions in order to assemble a rocket and launch it in the fastest time. Later, the men are taken to a series of stores in order to purchase three outfits - formal wear, swimsuit, and casual wear - for their partners to wear in a fashion show. The winners of the tasks, Scarlet & Bill and Chuck & Caitilin, choose two teams to go up for elimination. In the end, Krystal and Brad are sent home, both with tremendous boosts in confidence and skill level.

The competition heats up as the four remaining teams gear up for their new tasks. The ladies get to give the guys makeovers and the guys must go out and get phone numbers from total strangers. Tensions rise as a rivalry grows between two of the contestants, and when Chuck and Caitilin win the challenges again, they nominate Richard & Mindi for elimination for the second time, along with Lauren & Bill. The experience of having gone through elimination once already proves to be an advantage for Richard & Mindi, who survive, and Lauren & Bill are sent home.

For the first time, the individual couples must work together as a team to have a successful night of camping. The rivalry between Chuck and Richard reaches an all-time high, and the romance between Scarlet and Chuck seems to fizzle out because of the competitive fire in Scarlet. After a challenge in the wilderness, two of the teams are sent to the elimination room, where one team is sent home, leaving only two couples for the final task.

During the final day at the mansion, the teams spend more time getting to know each other, learning a skill that the other excels at - karate, cooking, kayaking, and piano - as one last thing to do with each other before the final elimination, a series of ten questions about your partner. By evening's end, one team wins a quarter of a million dollars, but both teams walk away with more knowledge and more confidence.

Beauty and the Geek's first season contestants gather in front of a live studio audience to discuss their time in the house, as well as what they took away from the experience, how their confidence has increased, and how their rivalries and romances have ended after the show has wrapped production.

The third season again unites a group of "beauties" with a gang of "geeks" for hilarious and heart-rendering results, and a prize of $250,000 to the winners.

The beauties must conduct an interview with an author while the geeks must perform stand-up comedy at the Laugh Factory. One team is eliminated at the end of the episode.

The beauties act as tour guides to visitors of the California Science Center museum while the geeks are required to draw sketches of a naked woman. One team is eliminated at the end of the episode.

The geeks are given makeovers and later offered up as bids at a live charity auction hosted by the beauties. One team is eliminated at the end of the episode.

The five remaining teams take a surprise trip to San Diego's Mission Beach, where the beauties must learn about radio waves and electronics while the geeks must put together their own fitness routines. One team is eliminated at the end of the episode.

The four remaining teams each get a dog; the geeks must get women's phone numbers at a dog park.

The final three teams get down and dirty at a farm where they must work with animals. Two teams face elimination, one team is eliminated, and the final two teams are revealed.

In the shocking third season finale, unexpected visitors threaten to jeopardize the status of the competition. Meanwhile, as the final two teams prepare for the final showdown, they reveal sides of each other that they've never shown before, and one teammate makes a decision that turns the competition upside down and leaves everyone in shock.

In this special reunion episode, the beauties and the geeks are reunited in New York, where they reminisce about their good and bad times in the competition, new never-before-seen footage is revealed, and updates on the lives of the contestants are shared.

In part one of the fourth season premiere, host Mike Richards is joined by season three's Nate and Jennylee on a nationwide search for the new season's beauties and geeks.

In part two of the fourth season premiere, the twenty chosen contestants soon realize that they are in for a very unique season as the new cast includes a male beauty and a female geek. Afterwards, the finalists pair up during a barbecue and get to meet their new partners.

Things are shaken up when the male beauty and the female geek finally move into the mansion. Meanwhile, the geeks are challenged to write an autobiographical rap to be performed for Three 6 Mafia, and the beauties must study politics and later put their newfound knowledge to the test while debating each other.

After a champagne celebration and a game of Truth or Dare take place, a romance begins to happen in the house between two contestants. Meanwhile, the beauties must study anatomy, and are later challenged by locating and drawing organs on their partner's body. The geeks, on the other hand, are challenged to put together romantic gifts.

The house romance takes a turn that could ruin one of the teams. Meanwhile, as voted by viewers, the geeks are challenged to massage the ladies while the beauties are challenged with rocket science.

It's makeover time! The geeks get their new looks and later put them to the test in the Beauty and the Geek prom, where one of them is named king. Meanwhile, the beauties are required to teach a third-grade class.

The geeks must create superheroes and design their own costumes. The beauties, meanwhile, are required to provide the back story for their partner's super creation.

With only five weeks until the season finale, the show is taking viewers back to the special moments of season four and also treating its audience to never-before-seen footage of the contestants.

The remaining contestants travel to Mexico, where one geek comes out of his shell and another is pushed to limits. For their challenges, the beauties must face each other in a memory competition while the geeks compete for immunity in a dance-off. Finally, a new twist promises to turn the competition upside down.