When Kourtney, Khloé, and Scott arrive in the Hamptons to start their picture-perfect summer, Scott is overwhelmed by the anxiety of being in his late parents' hometown and runs back to his old habits, and Khloé jets off on a romantic getaway to South Africa with her new boyfriend, French Montana.
After Kourtney admonishes Scott for breaking the boundaries they've set for their relationship, Scott makes attempts to clean up his act and get back in her good graces, and Khloé tries to get Scott on a healthy track with tennis, but her good deed backfires when Kourtney accuses her of taking Sc...
Kourtney flies to LA to confront Kim for using her home for North's birthday party without her permission. Scott finds himself in the hospital for too much partying.
Scott finally makes the decision to check into rehab, but his commitment to stay wavers each day. Khloe struggles with the realisation that her life isn't where she imagined it would be as her 30th birthday gets closer.
Kourtney and Scott try to steer clear of repeating their past mistakes, and Kim start to doubt her best friend's loyalty when family secrets are leaked to the media.
Khloé takes her support of Scott to another level when she arranges for them to host a podcast together. Things get ugly when Scott backs out on his promise to be in French Montana's video.
When Khloe rekindles her love for horseback riding, Scott and Kourtney make a secret wager on how long she will last. Kourtney and Kim try to break Kris's cranky mood.
When Scott is consumed by his negative affiliations with the Hamptons, he chooses to leave early. Khloé and Kourtney hire a new Dash Doll as a favour to Bruce.
Scott is still unable to set foot in his late parents' house, so Kourtney gets to work on fixing it up, hoping that she can convince him to keep it.
When Khloé enjoys a night of drinking, Kourtney accuses her of jeopardising Scott's sobriety. Khloé starts to question what their friendship really means after she's kissed by Malika.