Season six of Dallas opens with the resolution of the cliffhanger that ended season five, as Cliff Barnes (Ken Kercheval), hated rival of conniving oil tycoon J.R. Ewing (Larry Hagman), recovers from his suicide attempt. Though ostensibly ruined and disgraced through J.R.'s machinations, Cliff rises from the ashes to become president of Barnes/Wentworth, the oil company owned by his mother. Rebecca Barnes Wentworth (Priscilla Pointer) -- who, incidentally, will not survive the season. More so than ever before, Cliff is determined to beat J.R. at his own game in the open marketplace. Meanwhile, back at Southfork, J.R. has reconciled with his wife, Sue Ellen (Linda Gray), and despite the impassioned intervention of Sue Ellen's lover, Dusty Farlow (Jared Martin), she remarries J.R. in early December. At this point, Dusty disappears from view, not to be seen again for several more seasons. At the same time, J.R. again tangles with younger brother Bobby (Patrick Duffy), the bone of contention being their late father's will. Also, Donna Krebbs (Susan Howard), wife of J.R.'s half brother, Ray (Steve Kanaly), tries to expose J.R.'s questionable business practices with the help of the Texas Energy Commission. In retaliation, J.R.'s deft manipulates the media, stirring up public sympathy for himself -- even as he secretly embarks upon an illegal financial deal in Cuba! Throughout all this intrigue, J.R. finds time to attempt to "conquer" attractive rival oil executive Holly Harwood (Lois Chiles). And there's more!
As the marriage between Bobby and Cliff Barnes' sister, Pam (Victoria Principal), slowly unravels, wealthy Mark Graison (John Beck) tries his best to win Pam's love. Later on, Pam divorces Bobby and has a nervous breakdown, much to the delight of the manipulative J.R. -- yet she still manages to gain custody of her adopted son, Christopher. Plus, the romance between J.R.'s widowed mother, Miss Ellie (Barbara Bel Geddes) and Dusty Farlow's millionaire father, Clayton (Howard Keel), heats up. And in another development, J.R.'s divorced niece Lucy (Charlene Tilton) takes up with Ray Krebbs' ne'er-do-well cousin Mickey Trotter (Timothy Patrick Murphy), a fling that ends violently when Mickey is paralyzed in a car accident that may or may not have been caused by an inebriated Sue Ellen. Season six ends with the traditional Dallas cliffhanger, as a fistfight between J.R. and Ray Krebbs results in a fire that threatens to consume all of the Southfork mansion, with J.R., Sue Ellen, and their son, John Ross, trapped inside! ~ Hal Erickson, Rovi