Dallas - Season 13 - Eps 1: Phantom of the Oil Rig
Following the showdown in Europe, Ewing Oil and Weststar begin a new battle. Cliff is preoccupied at work. April's sister, Michelle, shows up in Dallas. Tommy returns home and attempts to make amends. Miss Ellie starts a search to find what the key in Jock's card opens.
About Dallas

Title: Dallas
First Air Date: 1978-04-02
Last Air Date: 1991-05-03
Status: Ended
Rating: 6.804/10 (from 212 votes)
Language: EN
Seasons: 15
Total Episodes: 357
Network: CBS
Genres: Soap, Drama, Family
Production Companies: Unknown
Synopsis
The world's first mega-soap, and one of the most popular ever produced, Dallas had it all. Beautiful women, expensive cars, and men playing Monopoly with real buildings. Famous for one of the best cliffhangers in TV history, as the world asked "Who shot J.R.?" A slow-burner to begin with, Dallas hit its stride in the 2nd season, with long storylines and expert character development. Dallas ruled the airwaves in the 1980's.
Cast

Patrick Duffy
Bobby Ewing

Kimberly Foster
Michelle Stevens Ewing

Larry Hagman
John Ross ( J.R. ) Ewing

Ken Kercheval
Cliff Barnes