It stars Donnie Yen, Shan Dong-bing, Nansun Shi and Zhang Zhao, alongside Louis Koo, Collin Chou, Lui Leung-wai, Fan Bingbing and Xing Yu.
Yen denied the SPL prequel reports, stating that Flash Point was a completely original film.
Set in pre-1997, before the return of Hong Kong to the People's Republic of China, the film opens with brothers Archer, Tony and Tiger discussing a drug deal with Sam, a rival gang leader.
On the night of their mother's birthday, the brothers plan to recover their drug money, but as they are doing so, Archer is arrested by Hong Kong police, while Tony and Tiger discover that Wilson is a mole and attempt to get rid of him.
While in court, Archer is forced to turn in all of his travel documents, which will prevent him from fleeing Hong Kong before his hearing.
Three months later, Tiger and Tony brutally murder Sam along with several other witnesses and crime figures crucial to the police investigation.
Tony, having kidnapped Judy from the hospital, threatens to kill her if Wilson, now a sole witness, testifies in court.
Once Archer walks free, Ma captures him and calls Tony for an exchange of hostages, leading to a confrontation in an abandoned village.
Ma rescues Wilson and Judy, then single-handedly takes on the remaining gangsters, killing most of them with his revolver and a commandeered sniper rifle.
Ma corners Tony and, having exhausted his ammunition, engages him in a grueling hand-to-hand fight, eventually strangling him to unconsciousness in order to finally arrest him.
Flash Point marks the third feature film collaboration of director Wilson Yip and actor Donnie Yen after 2005's SPL: Sha Po Lang and 2006's Dragon Tiger Gate.
With financing from abroad, Wilson Yip and Donnie Yen decided to raise the budget of the film to HK$50 million.
To ensure that the action scenes stood out, Yen not only hired martial artists from around the globe but also invited Collin Chou to join the cast.
At the end of its box office run in Hong Kong, the film had grossed a total of over HK$10 million.