The Ood have given a warning to The Doctor. The Master is returning yet that is not the biggest threat. A darkness is coming which brings with it The End of Time.神秘博士特别篇:时间尽头(上)是由大卫·田纳特,约翰·西姆,伯纳德·克理宾斯,提摩西·道尔顿,凯瑟琳·塔特,杰奎琳·金,克莱尔·布鲁姆,琼恩·维特费尔德,大卫·哈雷伍德,特蕾西·伊芙艾策