Bobby confronts deadly danger in his hospital room. Bobby's assailant is caught. J.R., Cliff, and Pam discover that Katherine is mentally disturbed. Lucy works as a waitress. Bobby's eyesight comes back and he's released from the hospital. Cliff romances Mandy Winger. Donna buys a small oil company but Ray is not too thrilled about it. Cliff suspects Katherine skipped bail. J.R. tries to explain to Bobby the bugs in his office. Ray discovers Lucy's new job. J.R. fears he may have been underestimating Cliff. J.R. and Pamela have an unpleasant exchange about her dating so soon after Mark Graison's death. Jason Ewing's daughter Jamie arrives at Southfork.