Greg hosts a meeting for the Westport Historical Guild to welcome back Stan, and Katie's homemade lasagna is a huge hit with the guys. After Stan makes several trips back for seconds and begins spending an inordinate amount of time at the Otto house, Chloe Brown Mueller becomes convinced that Katie and Stan must be having an extra-marital affair. Meanwhile, Angela and Doris step in to help Oliver with his Teen Help Line Interview.

With Katie's 40th birthday fast approaching, her self-esteem starts to wane. So Greg encourages her to go out and enjoy a night on the town with the girls, even suggesting she leave her wedding ring behind for a night of faux-single, silly fun. Meanwhile, Angela receives devastating news that will turn Doris' life upside down. While Katie is away, Greg enlists the kids' help to create a birthday present that is a heartfelt reminder of how much she is loved.