Bobby and J.R. refuse to sell Ewing Oil to Brundin and suspect that Carter McKay is behind the scheme. Cliff asks Afton to marry him. Cally proves too much for J.R. who turns to a former flame. Clayton's memory problems continue. Sue Ellen worries about who will be hurt if she continues with her movie plans.

Vanessa makes a play for J.R. Bobby is busy with April's surprise visit, Cliff believes that Afton's daughter could be his. Sue Ellen and Don spend time with John Ross.

Bobby and J.R. travel to Moscow to find out more about the dealings in Europe. Clayton gets help with his memory problems. Sue Ellen discovers that revisiting the past is tougher than she thought it would be. Cliff attempts to commit to Afton. Cally and Vanessa meet.

J.R. introduces James to the social scene in Dallas. Miss Ellie and Clayton look around Pride for clues about the key. Christopher goes out on his first date. April wants a commitment from Bobby. Vanessa returns to Dallas.

J.R. and Cally welcome Vanessa at Southfork. Miss Ellie and Clayton meet Sarah Ewing and find out about Jock's past in World War II when he helped others. Carter receives some bad news about an oil tanker. James ends up making a shocking claim about his true parentage to the Ewings at the Oil Baron's Club.

The Ewing family are shocked by the news that James is J.R.'s son. A tanker crash creates a P.R. nightmare for both Ewing Oil and Weststar. Michelle attempts to squeeze both Carter and J.R. Vanessa attempts to convince her son to return to Europe.

As Bobby continues to search for Sheila, Michelle blames Bobby for April's death. Meanwhile, James tries to find someone to take out his father; J.R. sends in a spy in the Carter's household; and Vanessa Beaumont arrives in Dallas.

Cliff, Liz, and Carter are named as suspects in the murder of Johnny Dancer. Meanwhile, Michelle offers to help Bobby find Sheila Foley; Cally confides in Vanessa; and J.R. and Clayton have a violent fight that leads Bobby to take action.

Bobby and Michelle travel to Odessa to find Sheila Foley and Cliff offers to help after they find a lead on her. Meanwhile, Vanessa accepts J.R.'s offer; LeeAnne De La Vega arrives in town; and Rose makes a confession.

J.R. tries to stop the sale of Ewing Oil to LeeAnn De La Vega. Meanwhile, Cliff spirals downhill, hurting his career; James frets over his mother's engagement; and Cally delivers surprise news to J.R.

J.R. is angered when he learns that James got Cally pregnant. Meanwhile, Bobby continues on the search for Sheila Foley; Cliff proposes to Liz; and Carter is named the lead suspect in the murder investigation.

LeeAnn and Michelle team up to try to break up J.R. and Vanessa. Meanwhile, Bobby learns Sheila's real name; and the verdict in the murder trial is delivered, but news from Cliff may change the outcome of the trial forever.

As LeeAnn's plot against J.R. unfolds, she skips town and leaves a surprise for Michelle. Meanwhile, Carter begins to plan his revenge after being released from prison and Bobby has dreams about April.