Xu Lin, an ordinary traffic policeman, discovered that the accident scene was full of doubts while on duty on a rainy night, and the subtle traces involved him in a shocking conspiracy that spanned thirty years. From mysterious symbols to advanced technology, he was shocked to realize that his father's death was not an accident, but the layout of the mysterious organization's "sequence". The villain Chu Yuan attempts to reshape the world with phase change field technology and sacrifices the entire city. Holding the last key left by his father, ordinary traffic policemen face extraordinary technology, reveal the truth with their flesh and blood, and protect the world.