Cameran prepares for the birth of her baby; Shep confesses to the downfall of his relationship following his quest to find love; Kathryn celebrates her second year of sobriety; Thomas has a new love interest.

Shep hosts his first adult dinner party, where Craig's anxieties over seeing Naomie mount and Austen remains hopeful that he can win Chelsea back; Kathryn finally meets Ashley, the woman determined to be the next Mrs. Ravenel.

Patricia surprises Cameran by planning a glamorous retro baby shower, where Craig and Naomie fall back into old habits and an unexpected guest turns the event on its head; Thomas considers his future with Ashley.

Kathryn takes the high road by inviting Thomas' new girlfriend, Ashley, to lunch; as Cameran's due date approaches, her anxieties over becoming a mom subside; Chelsea begins to fear motherhood may never be in her future.

Patricia encourages Thomas to propose; Austen's parents push him to make some strides professionally; Craig hires a coach to help him get his life on track; Naomie comes face to face with Craig's new crush.

Naomie prepares to open her family's new restaurant, and finally comes to terms with the fact that she isn't over Craig; Patricia and Craig have a heart-to-heart; Cameran tries an old-fashioned trick to get baby Palmer to make an appearance.

Cameran suspects that she may be experiencing labor pains; Kathryn prepares for her first day of work; Craig helps Austen realize things are over with Chelsea; Patricia tries to make Ashley into the perfect Southern Belle and hosts a dinner party.

Cameran plays the pregnancy waiting game; the gang prepares for a trip to Shep and Chelsea's hometown; feuding exes, Craig and Naomie, attempt to act civil; Austen decides to rekindle his romance with Victoria, but fears Chelsea's reaction.

Emotions run high during the gang's first night in Hilton Head, S.C., when Ashley confronts Kathryn; after the group is forced to pick sides, everyone walks on eggshells for the rest of the weekend.

As the Hilton Head trip comes to an end, Shep visits his mom and finally admits some truths about himself; Chelsea takes a trip down memory lane and opens up about her past.