Cater McKay plans to hurt Ewing Oil using the tanker disaster. Cliff and McKay collaborate against the Ewings. Bobby talks to the captain of the Ewing tanker. Christopher feels left out because James and John Ross socialize a lot. Kay Lloyd reappears in Bobby's office with an ominous warning from Washington. Cally thinks that J.R. has been sleeping with Michelle. Bobby and Christopher have a father-to-son talk about John Ross' situation and the increasing conflicts between the two boys. Michelle plots to break up Cally and J.R.'s marriage. Michelle sleeps with James. Cally pays Alex a late-night visit with words of revenge against J.R. on her lips.

J.R. confronts Lucy about why she gave sleeping pills to Cally. J.R. and Cally make up after the incidents with Alex and Michelle. Diana Farrington accuses Cliff of waging a personal vendetta against the Ewings but Cliff vows to nail the guilty party. Bobby is forced to sell a Ewing Oil field to pay for the cleanup effort. Carter McKay finds Rose Daniels in Follett, Texas and brings her back to Dallas. Kay Lloyd asks Bobby about whether he'll marry April. J.R. tells Cally that she'll never see Alex again. James discovers that J.R. cheats on Cally and tells him that he's a lousy husband, even through J.R. tries to explain to him that it's "just for business". McKay uses Rose to videotape Cliff and her in bed, and then he blackmails Cliff with the tape. Lucy pressures Cally not to give up her artwork. Kay flies back to Washington. April is ecstatic when Bobby tells her it's time to get married.