20 years of perseverance, hot-blooded teenagers finally become the people's hero.

Lu Yanchen and Gui Xiao were each other's first love but separated after graduation. Years later, they meet again and realize that the sparks are still between them.

An arrest operation that both succeeds and fails changes everyone's fate. Waiting in agony means never giving up, and those unspeakable crimes are also waiting for an opportunity to return. This time, it is the final battle between good and evil!