Miss Ellie and J.R. have a fight over her dating Parmalee. In Washington, Donna meets U.S. Senator Andrew Dowling. J.R. wants Clayton to side with him against Parmalee. Wendell plots to use Parmalee against the Ewings. Valentine and Sue Ellen disagree on business strategy. Jamie bills Cliff for the solution to his environmental problem. Ellie admits she feels attracted to Parmalee. The news media report on the events in Saudi Arabia and J.R. thinks that B.D. Calhoun has been killed. J.R. uses Sly protect Ewing Oil against Parmalee. Donna and Senator Dowling discover they have quite a lot in common. J.R. uses April to find out about Parmalee. Clayton and Miss Ellie reconcile. Jack sells his share of Ewing Oil to Jamie for 1 dollar. Bobby returns from South America bringing the truth about Parmalee, and the mystery is resolved.