Firestorm is a 2013 Hong Kong action film written and directed by Alan Yuen, produced by and starring Andy Lau. Lau plays a hard-boiled police inspector who takes the law to his own hands in order to take down a group of violent criminals who have taken multiple innocent lives while repeatedly evading justice. The film was converted to 3D during post-production, making it the first 3D Hong Kong police action film.

Plot

Chief Inspector Lui Ming-chit and ex-con To Shing-bong are secondary school classmates who competitively practiced judo together. Right after To was released from prison for robbery, he immediately re-joins Cao Nam and his gang to highjack an armoured car transporting cash. Lui leads his squad to arrest Cao's gang and engages in a gunfight where Cao kills a female hostage. Cao and his gang escape the scene after To suddenly rams Lui's car. To is arrested and he claims the crash was an accident and denies being Cao's accomplice. To is released after his girlfriend, Yin-bing arrives with a lawyer to bail him, but Lui orders his subordinates to tail him. To promises Yin-bing to give up his criminal life and she finds him a job in a restaurant.