Lin Yu, an ordinary delivery boy, has nothing to offer and lives a monotonous life. One day, he unexpectedly received a mysterious order while delivering food, asking him to deliver it to a remote address. While delivering the food, he suddenly discovered that he had acquired a strange ability - he could briefly travel between time and space. Lin Yu discovered that not all the delivery people around him were friends. Some deliverymen were bribed by evil forces and became secret spies and saboteurs. They tried to subvert the existing order and used supernatural abilities to achieve ulterior purposes...
