In this week's episode, JR (Larry Hagman) and John Ross (Josh Henderson) reveal what lengths they will go to for a chance to get their hands on the famous Southfork ranch, using blackmail and lies to get their own way.
Dallas episode four 'The Last Hurrah' - Photo gallery
Copyright: Channel 5However, things don't go totally JR's way as he discovers that his former wife Sue-Ellen (Linda Gray) has been having meetings with his old enemy Cliff Barnes.
Meanwhile, will Rebecca's (Julia Gonzalo) secret identity be revealed to Christopher (Jesse Metcalfe) now that John Ross knows she sent the famous marriage-ending email?
The episode also features a heart-to-heart from Christopher and Bobby, an animal emergency and a huge Southfork BBQ.
Dallas airs on Wednesday nights at 9pm on Channel 5.