The surprise arrival in Palm Springs proves hard for some; Another argument between Golnesa and her ex-husband leaves the group unclear on the nature of their relationship; Reza Jackson endangers Amir's life at the racetrack, then invites a plus-one to dinner at their house for an unforgettable night; A table-wide argument with Sky at the center threatens to divide the group, though Tanin and Sky's friendship suffers the sharpest dagger.