Katie and Greg are thrilled when Anna-Kat finally has a playdate with a "normal" girl. But Anna-Kat has a little secret: She's a budding kleptomaniac and has taken something from her new friend Penny's home. Greg wants her to return the item and fess up, but Katie disagrees, especially since Penny's mom, Chloe Brown Mueller, is one of Westport's most infamous gossips.

Greg befriends fellow history buff Stan, but Katie is less than pleased, especially considering he is married to her nemesis, Chloe Brown Mueller.

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.