Lucy tries to reunite her parents after Bobby convinces brother Gary to return to Southfork.
J.R. tries to pressure Gary into the business over Val s objections; drunken Digger disowns Pam because she married a Ewing.
Pam sees a marital threat when Bobby s old flame, Jenna Wade (Morgan Fairchild), asks Bobby s help for herself and her fatherless child.
Bobby feels J.R. is taking unfair advantage after Jock s heart attack.
Sue Ellen tries to get a baby through the black market in order to have a Ewing grandchild before Bobby and Pam.
When Pam s ex-husband arrives in J.R. s office claiming they are still wed, Bobby learns about Pam s previous marriage.
Lucy accepts a ride from a psychotic thief after running away because Jock forbade her to invite Val to her birthday party.
Pam backs Cliff s bid for state senator against the Ewings candidate but then accidentally gives J.R. information damaging to Cliff.
After Bobby and J.R. s airplane crashes into a swamp during a severe storm, the Ewing women try to keep the news from recuperating Jock.
Sue Ellen learns she is pregnant during an affair with Cliff; Pam s promotion interferes with Bobby s plans; guest Nicolas Coster.
Ray falls in love with an ambitious country singer but J.R. s wealth is competition for her affections.
Bobby and his college idol s new construction business includes plans to build a shopping center on Southfork land.
Cliff acts as go-between after Bobby is accidentally kidnapped instead of J.R., who proceeds with his own plans.
Miss Ellie is determined to yield Southfork to her brother, whom she believed dead, after he and a woman appear at the ranch.
Sue Ellen walks out on J.R. and seeks comfort from her mother and sister, who have recently moved to Dallas.
Julie Grey returns and develops a friendship with Jock, who resents being pampered by the family.
Julie decides to get revenge on J.R. by telling his secrets to Cliff, who arrives at her apartment and finds her murdered.
Pam believes J.R. framed Cliff for Julie s murder; Bobby finds evidence in Cliff s favor and learns the truth about J.R.
Kristin takes an interest in Bobby, which J.R. encourages; Cliff uses Pam to help him when he has a chance to delay a Ewing Oil deal.
J.R. blackmails Pam s new friend to lure Pam and Cliff s backer into a compromising situation.
J.R. has visions of creating a business dynasty when Lucy announces plans to marry the heir (Mark Wheeler) of an oil-rich Texas family.
Ray is attracted to Donna McCullum, unaware she is married to the man J.R. wants to use to stop Cliff.
Sue Ellen risks her unborn baby s life by drinking; Bobby tries to conceal Lucy s addiction to pills from his parents.
Sue Ellen is committed to a sanitarium, from which she escapes and then delivers her baby following a brush with death.