In a heartrending farewell episode, Dallas says goodbye to the legendary J.R. Ewing, who, after a lifetime of scheming and dealing, has finally met his end. The Ewing family reels at hearing the news about J.R.'s death and is even more shocked to learn the cause. Striving to set aside their differences, J.R.'s family comes together to mourn his passing, accompanied by many characters from his past. But their tears are soon overpowered by a shocking revelation worthy of one of televisions most iconic characters. In life - and now in death - nothing is ever as it seems when it comes to J.R. Ewing.

Peace among the Ewings is threatened when catastrophe strikes and Christopher's technology is believed to be the cause. As Bobby struggles to keep the family together, Sue Ellen reaches out to an old friend for help. Meanwhile, Pamela's mother, Afton Cooper, returns to Dallas to take care of her daughter. And Emma is put in the middle of her father and grandmother's relationship, pushing her closer to Drew, who's wrestling with a dark secret.