The ladies of New York are back after an eventful summer. Newly divorced Luann sits down with Dorinda and starts to open up about her relationship with Tom. Meanwhile, Bethenny mourns an unexpected death in the family. Typically reluctant to exercise, Carole preps to run the New York City Marathon. All the ladies reunite when Dorinda throws an epic Halloween party that nobody will forget.

The ladies head to the Hamptons for a fun-filled weekend. At Bethenny's birthday dinner Sonja seems to be disengaged from the group. The women see tensions rise between best friends Carole and Bethenny. Meanwhile, Dorinda and Sonja's friendship is short lived, as a blowup at Luann's brunch sets their relationship back.