ICAC Investigator William Luk and JFIU Chief Inspector Lau Po-keung both hit a dead end in their investigation of a bribery case and a money laundering case. In the meantime, William Luk was suspended when model Eva Ng went to Inspector Kenny Ching of ICAC’s Internal Investigation Group L, to file a report against him for accepting a $12M bribe. Lau discovered Luk was set up and whoever framed Luk was connected to his case. He began to suspect the bank manager Thomson Yau was assisting a gangster, Wong Hoi-wo in money laundering activities. When Director Hong Liang of China’s Anti-Corruption & Bribery Bureau (ACBB) provided Lau with important intelligence, it became clear the money laundering activities were connected to a corrupted Vice-Ministerial Level cadre. To clear his name, William Luk put everything on the line…

Driven by the desire for the huge reward, Tang Ren (by Wang Baoqiang) tricked Qin Feng (by Liu Haoran) to New York, to attend the World Detective Contest,. Later on, behind the crazy competition, Qin and Tang discovered the real hidden facts of this contest.