It's down to the final four teams, and tension and second guessing begin to take over the mansion. For their challenges, the beauties must get personal with creepy crawlers and the geeks must battle it off at a bar tending challenge that will test their confidence.

The final two teams go to each other's hometowns and meet each other's parents. Later, the contestants are shocked to discover that a major twist has the final showdown be something completely unexpected.

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.

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.

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.

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.

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.

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.

The three remaining teams go to a vineyard for a wine-making challenge.

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 the fourth season finale, all ten teams are reunited for one last time. At the end of the encounter, the winning team is revealed.

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.