As the family tries to enjoy their final days in Bora Bora, Rob's insecurities about not having a career prompts him to lash out at Kim when she calls him a loser, and it puts him and Kim's boyfriend Kris Humphries at odds. Rob also feels attacked when his little sisters Kendall and Kylie throw him under the bus for something he didn't do, and he's forced to defend himself to his mom and Bruce. Meanwhile, Kourtney gives Scott an ultimatum about his increased drinking, and the family comes together for Kris and Bruce's emotional vow renewal ceremony.