Ellen decides to surprise Dot by flying in her aunt Mary, to whom Dot hasn't spoken in years. Mary buys everyone very expensive gifts, going against Dot's rule of hand made, inexpensive presents. They also fight about Mary's successful career and Dot's way of life. Feeling resented, Mary decides to go back to Chicago, and it's up to Ellen to save the Richmonds Christmas now. She has a word with Dot, who finally decides to accept her sister and leave behind all the hard feelings between them. Unfortunately, there's nothing left to eat, except for Pam's gingerbread house.
