Everyone has babies on the brain and it's driving Khloe crazy! Family members and even complete strangers can't stop asking when she will get pregnant, and with Lamar struggling on and off the court, she doesn't need any more stress. To Khloe's delight, Kim flies out to Dallas to offer some sisterly companionship, but instead offers unwanted fertility advice that sets Khloe off. Meanwhile, Lamar continues to sink further and further into a deep depression. Can he pull himself out of his funk and get it together on the court?

Kris voices concern about Khloe not getting pregnant, so Khloe visits a doctor to see if there is a problem; Rob receives some shocking news.

Khloe receives the shock of her life when reports circulate that she is not the biological daughter of Robert Kardashian, Sr. Determined to put an end to the rumors about who her father really is, her family urges her to take a DNA test. But their insistence has Khloe feeling even more uneasy, especially since it times with her mom Kris' admission of an extramarital affair around the time that she was born. Meanwhile, Lamar finally expresses the painful emotions that have been holding him back.

When Lamar suggests he and Khloe create a unisex fragrance together, Khloe fears it will cause conflict in their relationship. As the bulk of the responsibility falls on her, she grows frustrated with Lamar and feels emotionally torn about whether she can continue to mix business with their marriage. Meanwhile, Malika starts dating Lamar's friend and fellow NBA player Rasual Butler. But when her strange relationship with Rob ends up sabotaging her new romance, she wonders if there's more between them than she'd like to admit.

Now that Lamar has been traded to the Dallas Mavericks almost overnight, it's up to Khloe to quickly pack up and move their entire household to Texas. Plus, she has to find digs that will help Lamar feel at home. While Khloe falls in love with Dallas' southern hospitality, Lamar has a hard time adjusting both emotionally and physically to his new team, and his attitude threatens their house hunting and even their rock-solid marriage.

In the season premiere, Khloe and Lamar's marriage is stronger than ever, while Rob and Lamar's relationship takes a complete nosedive. Busier than ever with his "Dancing With the Stars" gig and other projects Rob decides it's time to move out and get his own place. But now that Rob is out of sight, he's out of mind to Lamar--and their once close and brotherly relationship becomes strained when neither one wants to "man up" and meet in the middle. Can Khloe get her baby brother and the love of her life back on good terms?

When Khloe runs into Lamar's estranged dad at an event, she vows to help the two reconnect and urges her husband to repair the relationship without knowing their volatile history. When she makes an eye-opening discovery, Khloe finds herself caught in the middle when she has to uninvite Lamar's dad to a Lakers game. Will she respect Lamar's wishes to keep her distance? Meanwhile, Lamar finds out if he makes the 2011 NBA All-Star team, and Rob is asked to participate in a celebrity basketball game.

Khloe is forced to examine her insecurities when she receives constant criticism about her weight gain from the media--and even members of her family. Can she learn to love herself and not worry about making everyone happy? Also, Khloe gets fed up having to clean up after her filthy hubby Lamar so she decides to give him a taste of his own medicine. But it's game on when Lamar refuses to give in and Khloe refuses to back down.

Still on the fence about playing for the Dallas Mavericks, Lamar feels uncomfortable when his new team gets pitted against his old team, the Los Angeles Lakers. And to make matters worse, the match-up is back in L.A. where all eyes will be on his homecoming. Meanwhile, his best friend Jamie is more focused on himself and building a reputation than he is about Lamar's feelings about being back in California.

After visiting a boy with cancer, Lamar realizes that life is short and wants to reconnect with his estranged father Joe. Khloe wants Lamar to make things right with his dad, but also becomes concerned that he'll end up hurt again. Meanwhile, Malika's sister and her family move back to Los Angeles and end up staying at Khloe and Lamar's house while their new place is still under construction. But Khloe quickly realizes that she has overextended herself when they quickly wear out their welcome. Can Khloe learn to put her foot down and say enough is enough?

Now that Rob's decided to stay in Dallas, Khloe gets a firsthand look at how out of control Rob's OCD has gotten. When he receives news that his living situation in LA is compromised, his repetitive compulsions quickly go from amusing to downright scary, and Khloe's attempts to make him realize that he has a problem fall on deaf ears. Meanwhile, Malika pays Khloe a visit only to find that she has to share her bestie with NBA wife, Porschla Kidd.

With no end in sight for the NBA lockout, Lamar is left antsy at home--but a rare opportunity gets thrown his way when his agent asks him to play basketball in Turkey. However, Khloe's Armenian heritage makes it hard for her to support his decision to go abroad due to a disagreement between the two countries on a tragic historical event. Meanwhile, Lamar's best friend Jamie wants to jump into acting--but even with Malika's help, he can't grasp the concept that being an actor is still work.