TNT Releases 'Dallas' Refresher Course (Video)

TNT is bringing back '80s drama Dallas.

PHOTOS: Behind the Scenes of TNT's 'Dallas'

Patrick Duffy, who plays Bobby Ewing, and Larry Hagman, who portrays J.R. Ewing, reveals what has happened in the 20 years since we last saw them. Co-star Linda Gray also is back as Sue Ellen Ewing.

"There is always a competition, but it's not a competition on who is better, it's a competition on who is worthy," says Duffy in a new video released by the cable network.

VIDEO: Patrick Duffy, Larry Hagman on Returning to 'Dallas': 'We Do What Linda Says'

When the new series kicks off, the legendary trio are joined by the next generation of Ewings, who take ambition and deception to a new level. The newcomers joining the Dallas vets are Jesse Metcalfe, Josh Henderson, Jordana Brewster, Julie Gonzalo and Brenda Strong as Bobby’s new wife.

TNT's Dallas launches Wednesday, June 13 at 9:00 p.m.