The film "Detective Chinatown 2" partially continues the storyline of the first part. A young man who dreamed of becoming a student of the police academy, at last, can try on the cherished form. Moreover, because of the case he uncovered in Bangkok, he is now considered a man of high expectations. However, the young man himself is very modest and understands that in many ways he was helped by simple luck. But in the future he will not be able to rely on her, but because he studies hard.
And here comes another crucial moment in his life: a large operation is planned on the territory of America, in which the young man will be the key figure. Acting according to the order, he goes to the US and again finds his relative, hoping that their police tandem will be as successful as last time.
The young man really wants to repeat his past success to show that he is worthy of the proud title of a policeman. And this means that he is waiting for new dangers, new funny adventures and a new investigation, which must be completed!