May 1920. Matthew receives a letter that Lavinia's late father left for him. He writes that he knew how Matthew broke Lavinia's heart and still wants him to have his money. Matthew finally agrees to accept it, saving Downton. Lord Grantham refuses to accept the money as a gift, instead insisting that he and Matthew become joint masters of Downton.
Thomas tries to get revenge on O'Brien by spreading a rumour to the family that she will be leaving Downton.