A marksman armed with a Remington gun; a security guard working in transfer and delivery of cash and valuables day in and out; a gambling addict owing an unpayable mountain of debts to a triad gang – this is a recipe for a disaster waiting to happen. Siu-wah is a trusted confidant and colleague turns into a mole, working from the inside in a heist that goes terribly wrong, resulting in the deaths of a colleague and a triad member. Now the gang boss wants revenge, giving him the final wake-up call to be a man and do what he must do to atone for his sins.