This film tells the story of a pair of large-bodied police who awkwardly find themselves in the problem of drug trafficking cases. An agent J (Zhang Wen) who was shot in the head during an A-level mission which caused damage to the intracranial hypothalamus.
During the rehabilitation process, Agent J gradually became a big fat man weighing around three hundred pounds and he suffered from severe narcolepsy but Agent J continued to regard himself as an ace agent. In the end, J found another assignment and he went to Japan to retrieve the secret documents.
After the file is obtained, Agent J carelessly opens the file and he decides to be able to continue the task of hiding the organization for an organization, but he collapses at the izakaya.
Agent J who woke up in the hospital must know a security guard named Hao Jing Yon (Beir-Er Bao), Hao’s security guard to prove that he wasted nothing and he was resolute to be able to join the mission carried out by Agent J. In the process of carrying out the mission, the interim partner has experienced repeated and dangerous time crunches.