S4E5 · The Chrysanthemum and the Sword

Complete story — includes the ending

Pete enters SCDP into a competition run by Honda, earning the ire of Roger who, due to his World War II experiences, refuses to do business with the Japanese. Upon learning that the other partners have secretly planned a meeting, Roger sabotages it by insulting the Honda representatives to their faces. Sally's erratic behavior, including cutting her own hair and masturbating, disturbs Betty and Henry, who seek a child psychiatrist over Don's objections. The psychiatrist, Dr. Edna, sets up sessions for Sally four days a week, and also encourages Betty to see a therapist of her own. Meanwhile, Ted Chaough, the creative director of Cutler, Gleason, and Chaough (CGC), attempts to position himself as Don's rival. Don conceives of a plan wherein SCDP will pretend to shoot a lavish Honda commercial, allowing details of the shoot to leak to Ted, who attempts to outdo SCDP's ad. Don then tells the Honda executives that he is withdrawing SCDP from consideration, because Honda had entertained a bid from CGC that broke the rules with a finished ad. The Honda representatives are impressed, and Pete and Lane inform Don that SCDP now has a shot at Honda's automobile account.