Xiangcheng, a declining fifth-tier town, is about to usher in an international marathon.

Around this marathon, all kinds of people appear: young people from small towns who organize weddings and weddings, gangsters who open mahjong parlors, an acrobatic troupe with few people, and the boss behind the counterfeit money business...

Zhang Kuang wanted to hitch a ride on the marathon, so he opportunistically borrowed the elephant from his girlfriend's acrobatic troupe, but unexpectedly lost the elephant and was involved in the vortex of the counterfeit banknote case...