Mark invites Sarah to a friend's engagement party which stirs up a serious conversation about a baby in their future. Meanwhile, Amber receives a job promotion but questions her own qualifications, Adam and Crosby clash over business strategy for The Luncheonette and Zoe's behavior causes Julia and Joel to question their adoption agreement.

Julia and Joel head to the hospital for the birth of their son. Meanwhile, Sarah considers the possibility of a new life in New York with Mark, Adam and Crosby receive an extraordinary offer to sell The Luncheonette, and Jasmine and Crosby reconcile their past during a camp out with Jabbar.