S4 E1 • Le mariage

Khloe marries NBA star Lamar Odom.

S4 E2 • Le mal-aimé

Kourtney and Scott find themselves pitted against her family because disapprove of him. Scott invites the family to see the sex of the baby.

S4 E3 • Khloe contre Scott

Khloé is forced to get professional help for her anger issues towards Scott after hitting him. Rob ends up in the hospital when he accidentally takes a male enhancement drug meant for Bruce. Kris tries to be in the mood with Bruce.

S4 E4 • Bébé, es-tu là ?

Khloé gets excited when she thinks she's pregnant. Kim's tendency to tell 'little white lies' gets her into big trouble.

S4 E5 • Couples en danger

Kourtney confronts Scott when he fails to take her pregnancy seriously; Kris takes away Bruce's ATM card, which leads him to demand financial independence.

S4 E6 • L'amie des bêtes

Kim takes in a stray Chihuahua and is devastated when she must give it up; Bruce pressures Rob to move out of the house.

S4 E7 • Les Kardashian sur le ring

Bruce volunteers the family to help out at a charity boxing event; Kourtney babysits for some friends and learns a valuable lesson in child care.

Première diffusion : 24 janvier 2010

S4 E8 • Un week-end en enfer

Kourtney, Kim and Khloe take an ill-fated weekend trip to Santa Barbara. Back at home, Kylie becomes jealous of Kendall.

Première diffusion : 31 janvier 2010

S4 E9 • La «sex tape»

Khloé makes a 'love tape' for her husband Lamar Odom of the Los Angeles Lakers. Meanwhile, Kourt learns to enjoy sex again while pregnant.

Première diffusion : 14 février 2010

S4 E10 • Le verre de trop

Kourtney ends her relationship with Scott after he gets violently drunk on Kim's birthday in Las Vegas. On top of the world, Kim takes on more work than she should.

Première diffusion : 15 février 2010

S4 E11 • L'arrivée de bébé

After fainting from exhaustion, Kim learns to manage her professional life. Kourt takes Scott back and gives birth to their baby son, Mason!

Première diffusion : 21 février 2010