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.。该剧讲述了一对性格迥异的姐妹，在亲情、友情、爱情交织的生活中，在婚姻、疾病、家庭、恋爱面前，演绎出不同的青春旅程。。
