Shiro Tanaka, a tough and skilled undercover narcotics officer, works to dismantle drug operations in Buenos Aires. His latest mission targets the dangerous criminal syndicate led by the ruthless and cunning Hideo Sakata. After a vital drug bust goes wrong and his partner is brutally killed, Shiro’s efforts to bring justice are met with severe obstacles. Bent on retribution, Shiro defies orders from his superiors and pursues his own investigation, moving swiftly and decisively against Sakata's powerful network.

Shiro’s path takes him through a convoluted maze of betrayal, martial arts combat, and high-stakes confrontations. Alongside Roth, a fellow agent who becomes an invaluable ally, Shiro navigates dangerous territories and faces numerous adversaries intent on ensuring he fails. His relentless pursuit of justice is motivated by the desire to end Sakata's reign of terror and avenge his partner’s death. As he delves deeper into the criminal underworld, Shiro is pushed to his limits, relying on his skills, intelligence, and unwavering determination.