In the conclusion of the six-part story "Fury From the Deep," Robson (Victor Maddern) has revealed himself to be in league with the parasitic seaweed creatures who are attacking an oil refinery in the North Sea. Kidnapping Victoria (Deborah Watling), Robson makes a desperate escape, with the Doctor (Patrick Troughton) and Jamie (Frazer Hines) in hot pursuit. Unfortunately, not all of the other weed creatures have been disposed of -- certainly not the ones who threaten to choke the life out of the "good guys." Deborah Watling made her last series appearance in "Fury From the Deep, Episode 6," which was written by Victor Pemberton and first aired on April 20, 1968. Alas, this episode no longer exists in complete form. ~ Hal Erickson, Rovi