Undercover police detective ferociously hunts down drug dealers; bloody lovers fight for their own masters! Drug enforcement police officer Ahren shoulders his mission, venturing deep into the tiger's den, facing an uncertain fate; he infiltrates the side of the brutal drug lord, Brother Chen, only to discover that Brother Chen's own sister is actually his lover. On one side is the love of life and death, the bond of blood; on the other is the mission of drug enforcement, the adherence to justice. Amidst a shocking mystery, good and evil clash, and the forces of good and evil engage in a showdown; in a desperate battle, where should one go?