一个充满了报复心的人,用牢固的合成纤维为自己打造了全身盔甲,开始了一场杀人狂欢。。The Doctor faces the end of his life as the Master's plans hurtle out of control. With the sound of drums growing louder, and an ancient trap closing around the Earth, the Doctor and Wilf must fight alone. But sacrifices must be made, and the deadly prophecy warns: "He will knock four times."。