In the first episode, a newly single Kim, has moved into a gorgeous and perfect new home. However her dream mansion, quickly turns into a nightmare when Kris decides to throw a house warming party at the house.
The guests make a huge mess, spilling food all over Kim's new expensive rugs causing huge drama between mom and daughter. Meanwhile Kourtney decides to move in with Khloe and Lamar after putting her condo up for sale, but is continuing to work on her relationship with Scott. However, when Scott shows up at Khloe's house to pickup Kourtney and Mason for lunch, Khloe' refuses to let him in and Kourtney quickly decides she needs to find another place to live.
Kim goes on a blind date with someone that Kris set her up with; Lamar is in the play-offs and Khloe deals with the pressure.
Khloé is stuck between a rock and a hard place when she loses her seven-carat engagement ring and is afraid to tell Lamar.
Kim develops a serious crush on her hot Australian bodyguard and Khloé helps Lamar to finally learn how to swim.
Fearful of aging, Kim gets botox and has a bad physical reaction. Meanwhile, the family discovers that Kris is a closet smoker and Kourt is determined to get her to quit.
While Kourtney looks for a place to live in New York, her family does what they can to get her to stay in Los Angeles. Bruce looks into getting his dog neutered.
Rob begins to date his sister Khloe's best friend. Kris contemplates managing another client.
Kourtney and Scott struggle to have another baby; Bruce has difficulty accepting that 12 year-old Kylie has male friends.
Kris flirts with her handsome personal trainer and things get out of hand; Kim's competitive nature gets her into trouble with Kourtney.
Kim meets football star Miles Austin; Kourtney thinks about expanding D-A-S-H by moving to New York but her sisters are against the idea. Meanwhile, Scott and Bruce spend some bonding time together.
The family visit New York City for the July 4 weekend, and Kim meets with ex-boyfriend Reggie Bush and tells him about her latest love interest, Miles Austin.