While spending the holidays at Will's mother Marilyn's house, Grace gets cozy with Will's brother and old flame Sam. Sam's adopted daughter finds a fan in Karen, who is intrigued by the little girl. Meanwhile, Jack helps Will's clearly gay ten-year-old nephew organize and perform a Christmas show, which Marilyn is thrilled about. Will is silently fuming, however, as Marilyn is much more tolerant of the young boy than she ever was of her own son. (thetvdb.com)