When the Sun begins to expand in such a way that it will inevitably engulf and destroy the Earth in a hundred years, united mankind finds a way to avoid extinction by propelling the planet out of the Solar System using gigantic engines, moving it to a new home located four light years away, an epic journey that will last thousands of years.

玉帝的妹妹瑶姬（刘涛 饰）同凡人书生杨天佑（李光洁 饰）私定终生，还生下了三个孩子。得知这一切，愤怒不已的玉帝（王卫国 饰）杀死了杨天佑，还将瑶姬压在桃山之下永世不得超生。幸好哪吒及时赶到，才将瑶姬的孩子杨戬（焦恩俊 饰）和杨婵（周扬 饰）从玉帝的屠刀之中救下。
长大之后，杨戬成为了太乙真人的徒弟，习得了一身了不起的本领。杨戬想要救母，哪想到玉帝派出了十个太阳，将瑶姬晒死。愤怒的杨戬大闹天庭，玉帝发下了大水，然而，这水没有淹死杨戬，却落入了凡间，一时间生灵涂炭。杨戬决心先放下他同玉帝的恩怨，和妹妹一起到人间治水。

Zhu Tong is at the bottom of his class and is mischievous. Ten thousand fantasies appear in his little head every day. However, one day, he found that his head teacher was chasing aliens in the corridor, the flowers in the lawn could talk.

陈小萌（肖央 饰）一直渴望成为一名演员，但残酷的现实令他至今扔在龙套的位置上苦苦挣扎。没钱没工作没恋人没朋友还欠了一大笔钱的陈小萌想到了死，可是就连死神都抛弃了他，他数次自杀都以失败告终。
一天，陈小萌去澡堂泡澡，意外邂逅了一位神秘且富有的男子（刘德华 饰），该男子在澡堂里意外摔倒昏迷被送进了医院，拾得了他的储物室手环的陈小萌决定顶替他的身份，享受一下富人的生活。头部的撞击令男子失忆了，凭借着零星的线索，他认定自己是陈小萌，并且顺藤摸瓜来到了陈小萌的出租屋，希望熟悉的环境能够令他更快的恢复记忆。在此过程中，男子邂逅了名为李想（万茜 饰）的自媒体人，两人之间碰撞出了火花。

Delves into the realities of an aging society and centers on Ye Xiaolin – a former killer turned caregiver. She infiltrates and kills seniors under the guise of offering care, but her life takes an unexpected turn after a chance encounter with zookeeper Ma Deyong. As their fates become entangled and detective Zhou Ping begins to investigate the string of murders, a gripping story unfolds. The film raises awareness of aging-related societal issues by focusing on the themes of death, family dynamics, and the dignity of aging.