Kourtney has to fly to LA to confront Kim for using her home to throw a party without her permission.

Kourtney tells Scott off for breaking the boundaries they've set for their relationship.

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. Meanwhile, Khloé jets off on a romantic getaway to South Africa with her new boyfriend, French Montana.

Scott decides to check into rehab, but his commitment wavers each day. Khloé realizes her life isn't where she imagined it would be as her 30th birthday approaches.

Kourtney and Scott try avoiding making past mistakes again. Kim doubts her best friend's loyalty.

Khloe books a podcast for her and Scott to host. Kourtney declares she's now a trained sailor.

Khloé goes horseback riding. Kourtney and Kim try and cheer Kris up.

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Kourtney accuses Khloé of putting Scott's sobriety in jeopardy after her younger sis indulges in a night of drinking, during which she finds herself being kissed by her friend Malika. Meanwhile, Scott considers what career path will best support his new lifestyle.