Two detectives who are up to their necks in trouble and in each other's face, as they try to shut down a drug-trafficking scheme that could be connected with international ties to organized crime. But in the midst of their investigation, innocent immigrant dock worker Luk Wan-Ting gets caught up in the mix when he witnesses the murder of an intelligence operative and is framed for the crime.

When Dr. Yuen attempts to rescue a girl about to be sacrificed by the Worm Tribe in the middle of a jungle in Thailand, he is damned with seven deadly "blood curses" and must return there to find a permanent cure.

In Hong Kong, terrorists from Libya blow up a bus which kills the son of the American consul. The Hong Kong Police Force sends Lui Yung and his team of special agents to investigate the case and destroy the terrorist group. On the other hand, Senior Inspector Hui Tat Ming (Simon Yam) of the Regional Crime Unit is discontented by the fact that he is no longer in charge of the case since it has been transferred to the Politics Department. However, Hui secretly investigates alone to track down the terrorists and bring them to justice