Dylan's new girlfriend, Sonja, comes under scrutiny from his teen daughter. But before he can ease tensions between the two, Sonja's in the middle of a health scare when she is hospitalized with symptoms of avian flu. Also, Lu has trouble determining the cause of a young patient's excess weight gain and takes issue with a government agency that is looking to bring the girl's mother up on abuse charges for overfeeding the child. (thetvdb.com)