Thomas wants to prove that Kathryn and the children should not be overlooked.

Kathryn appreciates that Thomas finally had her back and JD and Whitney stage an intervention to air their concerns over Thomas' erratic behavior.

Craig returns to Charleston determined to prove he's a changed man. Together with his new girlfriend, Craig throws himself a "welcome back" party at his new digs and invites the gang to get back together again.

As Thomas slowly comes to the realization that he and Kathryn need to co-parent peacefully, Cameran decides to show off her burgeoning domestic skills by throwing a dinner party.

Craig continues to question why Kathryn is on the outs and Shep considers settling down.

Craig digs into the past to find the source of the animosity aimed at Kathryn.

As Craig settles into his new job, Cameran recruits Shep to be her real estate partner

Kathryn contacts an old friend to make amends following a string of rejections. Also, a nerve-rattled Landon heads to New York for a big opportunity; Thomas worries about the health of his unborn child; and Craig receives a crushing blow at work.

The trip puts a strain on group dynamics; Craig attempts to salvage his friendships with Cameran and Whitney.

Kathryn experiences complications related to her pregnancy, motivating Thomas to cosign her lease.

As Thomas and Kathryn prepare to welcome their son into the world, JD questions whether Thomas is actually the father.

Cast members rehash the tumultuous season.

With the arrival of their son St. Julien, Thomas and Kathryn begin taking 'baby' steps towards a possible reconciliation. Meanwhile, Shep is dealt a blow in his relationship with Bailey, but will a surprising declaration from Landon help mend his broken heart? Meanwhile, Craig reconnects with his former boss to get advice about returning to the world of law, and a talk between Cameran and her mom about having children leads to an unexpected conclusion. And when Patricia hosts an all male dinner honoring Thomas' newborn son, shocking revelations and fiery accusations give the proud father little reason to celebrate.

Kathryn and Landon continue to argue over the details of Landon and Thomas' alleged relationship.