Special investigators Igarashi and Hayami from an elite anti-terrorism unit infiltrate Oshima Hospital, suspected of manufacturing illegal drugs, aiming to uncover the clandestine operation. However, they are captured by the hospital's director, Oshima, and subjected to brutal torture. Having endured similar ordeals in the past, the two agents find themselves once again pushed to the brink of despair. Yet their resolve remains unshaken as they prepare to fight back against their captors.