In search of ancient secrets deeply buried in old graves, a man and a woman are to confront and compete harder, to get hold of a manual entitled "Secrets of the Lost Tomb".

Zhou Ao, an unemployed youth, and Jiang Ziwei, an online writer, have their faces replaced in a strange encounter and become the assistants of OMG, an intelligent high-tech robot from the future. In order to complete the task, they help the actress and the debtor to change their faces under the guidance of the robot, so as to collect the life experiences of different types of face changers, and also help them find their first heart.