4x1 - Off the Wall

December 1, 2009

The Season 4 opener introduces seven new "bad girls"—Annie, Flo, Kate, Kendra, Natalie, Portia and Amber—who swoop in on a luxury Los Angeles mansion and try to coexist with one another.

4x2 - I Run LA!

December 8, 2009

Self-proclaimed house leader Natalie is in for a rude awakening when the other Bad Girls won't bend to her ways, leading to an explosive battle that could send one of them packing. While the other girls resist various attempts at house dominance by Natalie, Kate quickly discovers her inner Bad Girl when she stands up to the house dictator. Kendra and Natalie's budding alliance is threatened when the two come to blows during an explosive argument.

4x3 - No More Mr. Nice Girls

December 15, 2009

Flo unleashes her wrath upon the house when she is unexpectedly betrayed, while Kendra makes a shocking decision that rips the house in two.

4x4 - Can't Buy Me Love

December 22, 2009

Portia's home life takes its toll, and she snaps when Natalie goes too far; Annie tries her luck at speed dating. Portia leaves the house.

4x5 - Don't Sweat the New Bitch

January 5, 2010

Newest bad girl Lexie arrives at the house and stumbles into a house divided where she is expected to choose sides; Natalie's relationship with Olamide takes a turn for the worst, leading her to set her sights on a new man.

4x6 - Paul and Kate Plus Hate

January 12, 2010

Kate's boyfriend Paul visits, bringing out the worst in Natalie, and prompting Kate to defend her man's honor; Flo's disapproval of Kendra's promiscuous lifestyle leads to a confrontation between the two.

4x7 - Bad Break

January 19, 2010

When Flo sets out to woo a woman, an appalled Amber's disapproval of Flo's same-sex desire ignites a fiery confrontation that might change the house dynamics for good. Meanwhile, the ladies pose for a photo shoot, and they reassemble with the baddest "bad girl".

4x8 - Friend??? Or Frenemy?

January 26, 2010

Natalie lures Kate into an unlikely alliance, triggering an angry backlash from the rest of the house, specifically Kendra. Elsewhere, Annie becomes fed up with being walked all over and finally defends herself while developing a harder edge.

4x9 - Sex, Lies and Bigfoot

February 2, 2010

Kate's relationship with Paul is doomed after she has a bisexual experience, while Natalie and Flo become fierce rivals.

4x10 - Go With the Flo

February 9, 2010

Flo's toxic attitude continues to alienate the girls, leading to the most shocking goodbye in Bad Girls history. Meanwhile, Natalie gains Amber's respect during a street brawl between Amber and a club patron. Amber's boyfriend visits, giving Amber a new sense of hope for their relationship.

4x11 - The Puppet Master

February 16, 2010

The ladies head to Santa Barbara for a girls' getaway and a respite from thorny mansion politics. But there's a collision course of egos and wills between Kendra and Natalie, resulting in a no-holds-barred street fight.

4x13 - Amber Alert!

March 2, 2010

4x14 - Out With a Bang

March 10, 2010

4x15 - Reunion, Part 1

March 16, 2010

4x16 - Reunion, Part 2

March 23, 2010