Brick is forced to play with his pampered cousin, Lucy. Janet babies her daughter beyond belief. Coddling is a parenting technique that Frankie never employs, so there's tension in the house when cousins collide. When Lucy's stuffed bear is trashed in the snow, Brick gets blamed for this Thanksgiving tragedy. He uses an old detective kit game to try to clear his name, though he'd have been better off leaving this as a cold case.
Frankie is stunned when Janet hints that she should buy Lucy a new bear at the mall. She vents her frustrations to her mom over a glass of wine. Later, Pat gets Janet's version of things over even more wine. Eventually, the two sisters have a full-scale blowout which culminates with a serious smackdown with the air mattress.
After the quietest Thanksgiving dinner in Heck history, Frankie and Janet make nice during a late-night leftover raid of the fridge. The holiday visit ends with hugs as everyone heads back to their own homes. Frankie declares this a "perfect Thanksgiving." Mike wonders, "What Thanksgiving were you at?"