When the Ronin Gang robs an armored car, three cops — Chan, Fong and Wai — go on the warpath. Each has a personal interest in bringing down Ronin leader Tien: he killed Chan's fiancée, humiliated Fong and kidnapped Wai's brother.
A Hong Kong cop is struggling for his survival in the underground world, a place filled with criminals and low life people like moss in rotting hell.
