Tang Ren and Qin Feng travel to Japan to investigate the death of a mafia head. As they suspect foul play, they engage in a battle of wits against foreign…

Tough Chinese detectives go on a mission to Moscow to hunt down ruthless robbers who have been plaguing the trans-Siberian railway with violence and chaos.

Driven by the desire for the huge reward, Tang Ren tricked Qin Feng to New York, to attend the World Detective Contest. Later on, behind the crazy competition, Qin and…