简介
传闻西王母拥有长生之术，摸金校尉霍安奉旨前往求仙，却遭遇异虫袭击。霍安无意间得到昆仑瓶，却被其能量所困，成为一座冰晶体，千年不化。 千年后，精通五行的张逍航为了寻找父亲，进入霍安墓，却意外使其复活，昆仑瓶重现人间，神秘文明也随之现世……。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."。秋日温暖的傍晚，父亲带着女儿一起骑单车，他们穿过林间小路，骑过草地，骑上高坡，来到平静的湖边。
父亲抱抱女儿，登上了小船。女儿在湖边静静的等待，等到船在视线里变模糊，等到太阳就要落山。父亲迟迟不归，女儿一个人骑着小小的脚踏车回去了。从那以后女儿每天都来湖边等候，她一个人骑着单车来来返返，风雨无阻。多年过去，小女孩为人妇，为人母，转眼老去。
已然老去的她日日来到湖边，直到湖水干涸，化为滩涂。她来到沉睡在湖底的小船边，躺在小船里，就像躺在父亲暖暖的臂弯。。