Cassie plans a progressive dinner and contemplates her next adventure as an empty nester. New advice columnist Martha investigates the identity of an advice seeker. Abigail and Donovan worry that they are on different paths. Stephanie's friendly relationship with her ex-husband causes trouble for her relationship with Adam. Joy butts heads with a carpenter, but when he quits it puts their shared project in jeopardy. Nick visits for the weekend, worried about sharing his academic struggles with Sam. When a health crisis arises at the dinner party, the fate of one Middleton resident becomes uncertain.