Based on

Movies like Red Rain (1999)

Choong's title is secret agent, but in reality, his duties are limited to ferrying and running errands for Hong Kong agents when they come to Taiwan - hardly the stuff of "Mission Impossible". Until one day, when an assignment to help two Hong Kong police officers find a missing girl turns into a wild goose chase for $30 million of loot involving Hong Kong top assassins and Taiwan's most powerful triads.