A spacetime anomaly suddenly descends, and Ximen Qing and Pan Jinlian, dressed in modern outfits, fall into an ancient battlefield. The two skillfully use novel ideas to subdue enemy generals, accidentally triggering spatial teleportation. Tracing back past events in Qinghe County, Ximen and Pan rely on a bamboo pole to build a booming business, establishing a bamboo industry empire. To share operational risks, they appoint Wu Dalang as chief executive, but unexpectedly the project incurs huge losses. Pan intends to use a cup of milk tea for a playful interaction with Dalang, but unexpectedly Dalang is accidentally drawn into spacetime travel and arrives in the modern metropolis. On a stormy night, lightning transports Ximen and Pan to a modern computer room, where the two embark on a magical journey in the modern workplace.