When nobody in Kourtney's family makes an effort to attend Scott's birthday party in Las Vegas, Kourtney house-hunts in New York City. Her family soon finds out, and Kris plots a belated surprise party for Scott. Meanwhile, Bruce struggles with getting Kim's dog, Rocky, neutered.

As Mason goes in for his 6-month check-up, Kourtney realises she wants another baby so her kids will be close in age like she and Kim were, but when she obsesses about getting pregnant, Scott thinks she's taking all the fun out of the process of trying. Meanwhile, Bruce has a hard time accepting that 12-year-old Kylie has male friends, and there's tension when she breaks the rule about inviting a boy up to her room.