Zhang Cheng is a police officer from the Spring City Public Security Bureau (a criminal police officer later turned into an anti-narcotics police officer), and Li Anlan is a lawyer. The two met for the first time in a cemetery. Later, the two gradually interacted and became friends, and Zhang Cheng also slowly tried to cross the cordon between the two, but what he got was Li Anlan's escape. At the same time, Zhang Cheng received an undercover mission and disappeared for a month.
The next meeting was when Li Anlan met the client in a private hospital. Zhang Zhang was locked in the ward and was addicted to drugs. Li Anlan accompanied me through the withdrawal period. The two spent several months accompanying each other. As the New Year approached, they received a message that read: The mission continues...
Mission: Prosperity, Democracy, Civilization, Harmony, Freedom, Equality, Justice, Rule of Law, Patriotism, Dedication, Integrity and Friendship