There's something fishy going on in the anti-Drug Trafficking Unit of the Hong Kong Police, but only a few honest cops realize that the corruption reaches all the way to the top. After being falsely accused of murder and drug trafficking themselves, however, they are in a rush to establish their innocence and must resort to unorthodox methods to do it. They are in a race against time to clear their names, protect the people they care about, and bring their dishonest coworkers to justice, all while dodging gunfire fired at them by both law enforcement officers and criminals.