Season 4 |
| 40 :04x01 - The Comeback (Aug/17/2006) | | 16 new contestants, each with UFC experience, arrive at the house and are divided into two teams. Training begins and the fighters for the first bout are chosen. | |
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| 41 :04x02 - Bloodbath (Aug/24/2006) | | Team Mojo decides to mess with Team No Love, but Shonie's carelessness jeopardizes their plan. Also: two middleweights face off in the Octagon. | |
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| 42 :04x03 - Passing Guard (Aug/31/2006) | | Shonie Carter's antics begin to agitate the house while in the actual fight Chris Lytle battles Pete Spratt in a war of the welterweights. Both fighters are confident despite them having rocky records in the UFC. | |
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| 43 :04x04 - The Funk (Sep/07/2006) | | Scott Smith faces Travis Lutter in the Octagon. Also: Jeremy Jackson is sent home after sneaking off with a date; a few of the fighters get a Staph infection. | |
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| 44 :04x05 - Flip a Coin (Sep/14/2006) | | Din Thomas battles Mikey Burnett in the Octagon. Also: Team No Love chooses a replacement for Jeremy Jackson; Shonie continues to aggravate his housemates. | |
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| 45 :04x06 - Captain Miserable (Sep/21/2006) | | Middleweights Pete Sell and Charles McCarthy square off in the Octagon. Also: Jorge learns he has a new baby daughter; Rich Franklin is a guest trainer. | |
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| 46 :04x07 - Drop To A Knee (Sep/28/2006) | | Welterweights Matt Serra and Pete Spratt square off in the Octagon. Also: Rich Franklin teaches Serra an unorthodox fighting position, and the fighter's question Franklin's motives for helping them train. | |
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| 47 :04x08 - True Colors (Oct/05/2006) | | Patrick Cote and Jorge Rivera square off in the Octagon. Chuck Liddell appears as a guest trainer. | |
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| 48 :04x09 - Semi-Final Match-ups (Oct/12/2006) | | Semifinal bouts feature Pete Sell vs. Travis Lutter and Patrick Cole vs. Edwin DeWees in middleweight action, and Chris Lytle vs. Din Thomas and Matt Serra vs. Shonie Carter in welterweight matches. Matt Hughes makes a surprise visit. | |
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| 49 :04x10 - Carter vs. Serra (Oct/19/2006) | | Shonie Carter faces Matt Serra in the Octagon. Also: Rich and Jorge put together a skit that pokes fun at Shonie; Matt has a confrontation with trainer Marc Laimon. | |
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| 50 :04x11 - Lutter vs. Sell (Oct/26/2006) | | Travis Lutter vs. Pete Sell in a middleweight semifinal bout. Also: Mickey Burnett tries a foolish stunt in which he attempts to run through a wall. | |
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| 51 :04x12 - DeWees vs. Cote (Nov/02/2006) | | Edwin DeWees vs. Patrick Cote in the middleweight final. Also: Gideon Ray, Pete Spratt and Rich Clementi prank their housemates; Mikey Burnett learns he needs surgery. | |
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| 52 :04x13 - Ultimate Finale IV (Nov/09/2006) | | The welterweight and light-heavyweight finalists square off in the Octagon in Las Vegas. Each winner receives a three-year, six-figure UFC contract. | |
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