Twenty Years Ago, three thundering policemen were once respected as the ‘Tridents’ by the police arena. Before they are about to retire, they accidentally complete a case of money laundering, therefore freezing a huge amount of money. In order to unfreeze the assets, the fraudster employs gangsters to trace the money back. A former foe from 20 years ago suddenly appears. Challenged by the rivals and various forces, the three old police have to use their traditional methods to fight the new type of crime. Under the huge lure of the opponent, the relationship between the ‘Trident’ also appears to be subtle… Be torn between the police duties and the enormous profits, they finally choose to break the financial criminal together.
