The beginning is a desperate situation! When Ace Agent Bai Ci opened his eyes, he was actually betrayed by his comrades in the Zhazidong interrogation room and provided with three lines of communication. The traitor was flattering the enemy leader and asking for credit, but the next second, Bai Ci smiled, "Do you think my code name is 'tape'?" He pulled off the button of his clothes, revealing the microfilm sewn in the lining, "The three lines you just read are the entire latent list of the military for the past 48 years." His ability is not toughness, but relying on absolute pitch to listen to footsteps to identify friends and foes, and using a piece of broken porcelain to reconstruct the ventilation duct map of the entire prison. Fight through hell, eliminate the inner ghosts, use the bones of the traitors as chalk, and draw the last contact diagram of their lives for the enemy agents on the black wall of the Zhazi Cave - the strongest law of secret warfare: the day you betrayed me, you were already dead.