April ends up being intimidated by Nicholas' thugs. J.R. wants Cliff to keep hold of his Weststar holdings. Bobby mixes business with pleasure with Kay Lloyd. Miss Ellie goes to see Lucy. Clayton is blackmailed. Charlie's bad behaviour continues.

Sue Ellen makes plans for her first movie when she teams up with Don Lockwood and Lucy. Cally manages to become a hero at Southfork. Tommy McKay shows up in Dallas.

Tommy claims to be a changed man as he plots revenge against Bobby. Cally's paintings manage to impress a gallery owner. J.R. makes a risky deal without Bobby's knowledge. Cliff manages to locate Afton. The mysterious key sends Miss Ellie and Clayton to New England. J.R. meets April's sister.

J.R. thinks about agreeing to a risky deal on a tanker when he needs oil badly. Cally has trouble getting past the fact that April once slept with her husband. Michelle meets Cliff in secret. Miss Ellie and Clayton's treasure hunt takes them to the town where Jock first struck oil. Tommy's violent temper gets out of control again.

Tommy ends up planting a bomb in Bobby's briefcase in an effort to protect his father against some perceived threats. J.R. comes to a decision about the tanker deal. Cally's art causes further interest. Cliff feels left out of the loop at Ewing Oil. Miss Ellie and Clayton make their way to Pride in Texas.

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.

J.R. begins to mould James, who seems to already have the seduction line done to perfection. Cliff wants to be part of the official investigation into the tanker accident. John Ross is surprised to have a new half-brother. Bobby wants to commit to April. Miss Ellie gives J.R. the letter that Jock wrote.

Carter hopes that he can use the tanker accident to help bring down Ewing Oil. Jock's letter manages to inspire J.R. Bobby receives a surprise visit from Kay. Cally believes that J.R. is sleeping with Michelle. Christopher and John Ross argue about James.

J.R. and Cally manage to repair their relationship. Carter traps Cliff in a sexual blackmail plot. James disapproves of his father's business tactics. Kay wants to know what Bobby's intentions are towards April. Bobby sells Ewing Oil assets to pay for the oil clean-up.

J.R. feels guilty, believing the end of Ewing Oil is close. Cliff feels torn between doing what's right and his hatred of the Ewing family. Carter's wife is fed up with his constant mistreatment of her.

Cliff meets P.R. guru Stephanie Rogers, who tells him that she can make his political dreams a reality. J.R., Cally, and John Ross travel to Pride to help Miss Ellie. Bobby gives April an engagement ring but they fight after. James and Michelle come to terms.

Cally is determined to make her marriage work. April's mother helps her decide on Bobby. Miss Ellie and Clayton investigate their friends' murders. J.R. manages to get some information on Stephanie. James and Michelle fall out. Bobby plans a trip with his son.

It is the day of Bobby and April's wedding. Cally feels conflicted about her plan for revenge against J.R. after she discovers that she is going to have a baby. J.R. plots to gain control of Jessica's voting rights in Weststar. Cliff meets Liz Adams. Miss Ellie and Clayton leave for an extended Asian vacation.

J.R. is kicked out of Ewing Oil by Michelle, who moves to Southfork with James. Meanwhile, Liz and Bobby wait in Malibu for Hillary Taylor's return.

As Bobby comes face-to-face with Jory, Hillary's daughter, J.R. begins to plot against LeeAnn.

Bobby is faced with a moral dilemma when Jory is kidnapped. Meanwhile, J.R. begins his plot against LeeAnn.

The men of the Ewing clan leave together on a cattle drive. Meanwhile, Carter goes after Johnny Dancer's real murderer and a surprise visitor arrives at Southfork in search of James.

Carter is finally able to accomplish what he set out to do -- seek revenge on Johnny Dancer's real murderer, Cliff. Meanwhile, Hillary learns that Bobby had met with Jory; and J.R. tries to get James and Michelle back together.

Michelle goes to Cliff for advice when she learns about James and Debra Lynn's past. Meanwhile, J.R. receives a shocking warning from his doctor.