A fractured group arrives at the Hamptons with Sonja straddling the line between the blondes and the brunettes. Luann, Bethenny, and friends head to dinner to discuss the night that forced Luann back into rehab. At a dueling dinner, Tinsley and Dorinda watch as Ramona fails to score with the local guys. When Barbara tries to bring the ladies together by throwing a clambake, things go from bad to worse.