When a prominent drug dealer is murdered, Sergeant Acosta (Joey Marquez) and Federal agent Francis (Piolo Pascual) lead the investigation, but the trail goes immediately cold. What they discover is a conspiracy of massive scale: the killers (Joel Torre and Gerald Anderson) are inmates, temporarily released from jail as assassins before returning to incarceration. Prison. The last place a cop would look. A perfect cover-up. Caught in a web of deceit and corruption, Acosta and Francis are on a collision course with the government officials who will do anything to silence them – and no one is safe.