J. R. wants to nominate Bobby as Oilman Of The Year. Mark Graison wants to fund a medical research center. Sue Ellen's mother Patricia arrives at Southfork and meets Clayton Farlow. J. R. harshly rejects Wendell's buyout offer. Jack confronts J. R. about the burglary in his apartment. Patricia questions J. R. about his marriage to Sue Ellen . Mark acts as a go-between for Pam in her business dealings with J. R. and Wendell. Jack is interested in Jenna Wade. Sue Ellen's mother visits her at the sanitarium. Mandy Winger disappears. Patricia and Miss Ellie have a fight about J. R. and Sue Ellen. Pam makes a decision on Wendell's offer which gets J. R. depressed.