The story tells the story of the protagonist Li Shande (played by Lei Jiayin) who was deceived by his colleagues from a supervisor to a "lychee envoy", and was forced to take on a "death" task to transport fresh lychees from Lingnan to Chang'an for the birthday of Concubine Guifei. In order to ensure the stability of his daughter Li Sleeve for the rest of her life, Li Shande had no choice but to set off for Lingnan; At the same time, Zheng Ping'an (played by Yue Yunpeng), who was looking for evidence of the crime of overthrowing the right minister for the left minister, had arrived in Lingnan one step ahead. The two uncles who bear their own heavy responsibilities meet by chance in other towns, and accidentally get acquainted with Amita (played by Narnasi), the president of the Hu Merchants Chamber of Commerce, Yun Qing (played by An Wei), the owner of Konglang Fang, Hu Shang Su Liang (played by Lu Liang), and the maid (played by Zhou Meijun) and others, and they are also blocked by He Youguang (played by Feng Jiayi) and Zhao Xinmin (played by Gong Lei), the secretary of Lingnan. Under the entanglement of two lines, the difficulty of the task has soared, how will they break the dead end and find a glimmer of life?