Betty confronts Don about his identity theft, forcing him to reveal to her the truth about himself, resulting in him being forced to confront his past and come clean. Meanwhile, Roger meets a former client/lover who wishes to rekindle their affair. Joan discovers that her husband, after a failed attempt to switch to psychiatry, has joined the army in order to ensure that he will become a surgeon. This episode takes place during the last week of October and ends on October 31, 1963.