Xiao Lu passed the test of Three Old Boys and was recognized by Three Old Boys as his apprentice. Xiao Lu also solved the knot that he thought was not trusted by Three Old Boys.The Three Old Boys used a trick to let “Fu San'er” escape. In fact, Xu Guozhu arranged for Lao Wan to act in order to get “ Fu San'er” to reveal his identity, but “ Fu San'er” escaped by chance.Finally, Mr. Liu sent him back to the Public Security Bureau.Relying on years of tacit understanding, the Three Old Boys put on a show in front of "Fart San'er“", and finally allowed ”Fart San'er% to reveal his true colors. He honestly explained the crime, confessed several people on the line, and captured the criminal.Suspect, a major breakthrough was made in the money laundering case.