Greg hosts a meeting for the Westport Historical Guild to welcome back Stan (Timothy Omundson), 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 (Jessica St. Clair) 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