Dallas - Season 3 (1979)

Valene returns and tries to win a resistant Lucy's understanding. Pam discovers she is pregnant and struggles with how to tell Bobby about both the baby and her own recently discovered genetic disease.

Kristin convinces J.R. to give her a summer job at Ewing Oil and begins flirting with him in earnest. Bobby learns Pam is pregnant, but not about her genetic disease. J.R. makes a business deal that may put Southfork at risk.

Jock, Bobby, J.R. and Ray take time off to go on a hunting trip. Once there they encounter a farmer who Jock strong armed 40 years ago and who is seeking revenge. Afraid he might not make it out of the encounter Jock confides a secret to J.R. and asks him to do something that might bring J.R.'s recent shady dealings to light. Back at the ranch Miss Ellie takes advantage of the men's absence to make a worrying doctor's appointment.

Bobby becomes close to the son of one of the ranch hands. Pam tries to find a way to tell Bobby about the risk to their unborn child. J.R. becomes suspicious of Sue Ellen and hires a detective to follow her.

The Ewings host a rodeo. J.R. uses the event as an excuse to further his plans to destroy Cliff and openly flirt with Kristin. Digger uses it as an opportunity to see John Ross III, who he believes to be his grandson. Sue Ellen flirts with cowboy Dusty Farlow.

Jock confesses his secret to Miss Ellie, which cause her to fear telling him about her cancer. J.R. continues his plan to undermine Cliff. Sue Ellen meets Dusty Farlow again.

Ellie deals with the aftermath of her mastectomy and her anger at Jock keeping something from her for 40 years. Digger tell Miss Ellie he still loves her. Lucy fears she will inherit breast cancer. Jock and Bobby find out about J.R.'s plan to displace Cliff. Dusty tries to convince Sue Ellen to leave J.R.

Lucy throws herself at Alan Beam, who sees her as a ticket to the good life. Pam and Bobby fight over J.R.'s attempts to ruin Cliff. Bobby learns about the Asian oil deal and the mortgages J.R. has taken out and tells Jock.

A typhoon delays drilling in Asia as J.R.'s loans become due. Cliff resigns from the Office of Land Management to run for Congress. Ellie makes a massive sacrifice to save Southfork and Ewing Oil, but blames J.R.

Sue Ellen's lack of interest in her baby causes tensions throughout the family. Jock scrambles for a way to stop drilling on Southfork. J.R.'s gamble with the Asian oil leases comes to an end and Jock makes a decision about the future of Ewing Oil.

Gary and Valene return to Dallas with the news they are getting re-married and moving to California. J.R. and Kristin go on a 'business trip' and are interrupted by Kristin's ex-boyfriend, Rudy.

J.R. tries to convince Jock to send Bobby back to Ewing Oil instead of coming back to work himself. Pam and Bobby fight over how much time she spends at the store. Pam gets a promotion. Ray gets back together with Donna Culver.

Kristin discovers Lucy's affair with Alan Beam and brings the information to J.R.. J.R. sees a way to turn Alan's romance to his own advantage.

Egged on by his father, Digger, and a reporter, Cliff Barnes initiates a lawsuit to be acknowledged as the father of Sue Ellen's baby.

When Pam continues to put a strain on her marriage to Bobby by going on a buyer's trip to Paris with Harrison Page, Bobby seeks comfort in the arms of Jenna Wade, who is back in town.

Dusty wants Sue Ellen to leave J.R. but J.R. won't make it easy for her. Jenna visits Pam whose relationship with Bobby is still strained. Donna tries to reconcile with Ray.

J.R. pressures Alan to marry Lucy soon. Cliff's campaign runs out of money. Jock offers Alan a wedding gift that spoils J.R.'s plans.

Sue Ellen plans for a divorce action by acting like the perfect wife and hiring a detective to follow J.R.. When J.R. realizes what she is up to he takes action to discredit her.

The identity of the skeleton found on Ray Kreb's section of Southfork is revealed as a man last seen arguing with Jock many years ago. The D.A. accuses Jock of murder and puts him on trial.

Sue Ellen goes back to drinking after a tragedy. Digger's health continues to fail. J.R. testifies against Jock, whose lawyer is concerned that the D.A. has a good case against him. Digger reveals information that shakes Pam to the core

Most of the family goes to Colorado to visit Jock's first wife. J.R. stays behind to rig a deal on the Asian oil wells. Pam hires a detective to look into what became of her mother. Sue Ellen has trouble with the bottle again.

J.R.'s friends, family, and business associates vow revenge on him; Bobby and Pam leave Southfork.