Kourtney, Khloé, and Scott have arrived in the Hamptons; Scott has anxiety about being in his late parents hometown; Khloé sets off on a romantic getaway to South Africa with her new boyfriend.

Scott finally makes the decision to check into rehab, but his commitment to stay wavers with each day; Khloé 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; Kim starts to doubt her best friend's loyalty when family secrets are leaked to the media.