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

When Khloé revives her love for horseback riding, Scott and Kourtney make a bet on how long she will last; Kourtney and Kim try to break Kris's crabby mood.

Kourtney tries to convince Scott to keep his late parents' house, even though he can't bring himself to set foot in it, which she tries to remedy with a makeover. Meanwhile, Khloé's fraternizing with the Dash Dolls doesn't go over well with her big sis.

When Khloé enjoys a night of drinking, Kourtney get angry and accuses her of recklessly putting Scott's sobriety in jeopardy; Meanwhile, after Malika drunkenly kisses Khloé, Khloé starts to question what their friendship really means.