J.R.'s snooping into Clayton and Jessica's past makes him realize his mother may be in grave danger. The concern of the Ewings for Miss Ellie's safety increases after it is learned that she never arrived at a fashion show she was to attend with Jessica and Donna. Mark's death affects the Ewings in a variety of ways and Bobby and Jenna face Pam's need for Bobby's help. Katherine buys Cliff's share of Wentworth Took & Die so he can continue his offshore drilling and Pam discovers Katherine's duplicity in her relationship with Bobby.
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