George (T.R. Knight) has trouble explaining to his somewhat thick-eared siblings that their father Harold (George Dzundza) must have heart surgery. When Burke (Isaiah Washington) is chosen to perform the operation, he wonders if he's up to it--and so, after a while, is George. Meredith (Ellen Pompeo) is profoundly affected by her young patient Mia (Brooke Bryan), who seems to prefer her allegedly abusive nanny to her mother. After calling a truce with Addison (Kate Walsh), Derek (Patrick Dempsey) shares a few words (and a bath!) with Meredith. And two other couples face an uphill climb in search of common ground. ~ Hal Erickson, Rovi