Jeremy Wendell extends a business offer to J.R. and Bobby. Donna and Cliff collaborate on the Washington lobbying effort. Sue Ellen tells Miss Ellie that she's determined to learn to handle J.R. The detective follows Mandy. Cliff tells Jamie that nothing works between them. J.R. tells Jack not to come to Southfork again. J.R. rescues Mandy who fears for her life. Wes Parmalee questions Ray about his relations with the Southfork Ewings. J.R. and Bobby have a disagreement over field closures. Cliff wants Jack's 10 percent of Ewing Oil. Ray and Donna discuss some fundamental differences between them. Sue Ellen buys Valentines Lingerie. J.R. tries to come up with some solution to the very bad situation in the oil industry.