Is Scott a changed man or is he back to his hard-partying ways? Kim is worried Scott is spending too much time drinking at Miami clubs and not enough time with his girlfriend and newborn son. When Kim brings up the issue, Kourtney gets defensive and aggravated that her family has never accepted Scott. But when two bottles of Kim's wine go missing, Kourtney is forced to confront Scott about his demons. Meanwhile, Kim is excited to baby-sit Mason while Kourtney is at work, but can she handle the diaper changes, burping, and baby puke? Find out.