Leung, a man of unrivaled loyalty, has given his life to protecting Wong, a powerful leader of an elite Chinese underground society. When asked to travel overseas and guard a young woman whose identity is secret, he learns that if her secret were to be exposed it would result in the demise of an entire regime. Protecting her proves to be the easy part of this assignment when he discovers that Wong's son has been lying to his father in an effort to overthrow his reign. Now, the fate of Wong's dynasty is riding on the betrayal of his son, and the destiny of a nation has landed in the hands of Leung.