The current imperial court recruits Foreigners, assigning them various roles based on their individual talents in hopes of transforming the present archaic civilization into a better one. An influential dissident, Zuo Yunqi, infiltrates the imperial court under the guise of a Foreigner to save his father, but is exposed by the Landlord, who is an expert at distinguishing aliens. Their encounter ignites a series of mental and physical battles that are occasionally comedic, yet they eventually reach an agreement to cooperate. Although they successfully thwart a conspiracy, they discover another Foreigner who has secretly formed an alliance to overthrow the existing power and establish a new, free-for-all society. Zuo Yunqi and his gang are compelled to take action.