Keeping Up with the Kardashians - Season 4 (2009)

Kourtney doesn't want a baby shower, so her family plans one behind her back.

Kourtney feels Scott isn't taking her pregnancy seriously and issues him an ultimatum: if he doesn't start putting in more of an effort, their relationship is over.

Kim finds a Chihuahua roaming the streets, and she unsuccessfully tries to find its owner but can't bear to leave it behind.

The Kardashian clan heads into the boxing ring! Bruce and Kris are deeply disappointed when all of the girls back out of attending an important charity event. Meanwhile, Kourtney gets a reality check when she and Scott baby-sit for three kids and she starts to question her ability to be a good mother.

Kourtney arranges a special weekend trip to Santa Barbara with her sisters that unexpectedly turns out horrible. Meanwhile, Kylie turns jealous when Kris helps her sister Kendall launch a modeling career.

Khloe decides to make a sexy "love tape" for Lamar to take with him while he's away. But Khloe ends up beyond embarrassed when the tape ends up in the wrong hands.

While in Vegas for Kim's 29th birthday, tempers flare when Scott gets belligerent during Kim's b-day dinner and forces the entire family to question Kourtney's relationship with him.

Scott tries to make things right with Kourtney and her family after his unacceptable behavior in Las Vegas. But Kris believes Scott has crossed the line and doesn't believe he deserves to be a part of their family.