Mark of Cain

S4 E18: J.R. succumbs to the cunning Leslie Stewart, who now knows she has the head of Ewing Oil right where she wants him. While Leslie reels in her catch, Bobby is caught in the middle of Jock and Miss Ellie's feud. He is put in the same uncomfortable position while taking his new place on the senate committee which will decide the future of Takapa. Pam enters a new phase in the relationship with her and Cliff's mother. Sue Ellen continues to seek comfort from Clint Ogden and the new "Young Miss Dallas" makes life very difficult for Mitch.