Century of the Dragon is a 1999 Hong Kong crime film directed by Clarence Fok and starring Andy Lau, Louis Koo, Joey Meng and Patrick Tam.

When Wong Chi-sing (Louis Koo) was training in the police academy, he achieved prominent grades which prompts Superintendent Ko (Joe Lee) to send him undercover before his graduation.

After five years, Chi-sing finally gains the trust of Hung Hing Gang's most prominent leader Lung Yat-fei, known as Fei-lung Gor (Andy Lau).

Unknown to Pau, the police have planted undercover cop Big Head Man (Eric Wan) in his gang for many years.

Man-chun calls Chi-sing to negotiate with Loan Shark Man, while on the other hand orders his henchmen to sweep Ko's business and rape his wife and daughter.