Tang Yuan returned to his original starting point, giving up teaching and choosing a career as a doctor, but he still chose Song Te, who knew how to be a firefighter. Even though he knew the ending would be tragic, he never looked back. And he witnessed the sadomasochistic relationship between his best friend drug researcher Qin Chu and the policeman and undercover Chu Han.
Song Te, Chu Han are loyal to the country, loyal to the people, and loyal to their lovers. But it's hard to have both.
Intention: There is a group of people who use their lives to protect the little love and the big love