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.

Tommy claims to be a changed man as he plots revenge against Bobby. Cally's paintings manage to impress a gallery owner. J.R. makes a risky deal without Bobby's knowledge. Cliff manages to locate Afton. The mysterious key sends Miss Ellie and Clayton to New England. J.R. meets April's sister.