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Tarrant (Steven Pacey) is appalled to discover that his brother, Deeta (also Steven Pacey), is to fight a duel to determine the outcome of an interplanetary field. Even more disturbing is the fact that the evil Servalan (Jacqueline Pearce) has set herself up as a neutral "judge," the better to foment peace rather than war. Deeta is killed at the hands of Servalan's hand-picked opponent (actually an android), whereupon Tarrant swears to avenge his brother's death -- a vow that will result in unbearable pain amongst the citizens of both warring worlds. "Death-Watch" was originally telecast on March 24, 1980.