Top agent Ling Feng traveled through time and was reborn, accidentally bound to a mysterious mission system, and became a new agent of the Ministry of National Security. In the glare of modern espionage warfare, he relies on his system guidance and past life experience to form an iron triangle with the calm and wise analyst Su Qing and the experienced veteran agent Zhao Yueshan, and has repeatedly thwarted the intelligence conspiracies of foreign forces. However, as the mission deepens, the secrets behind the system and the truth about its rebirth gradually emerge, and the ultimate battle concerning national information security has begun. At the crossroads of protecting his country and exploring the truth, Ling Feng will use loyalty as his blade and wisdom as his edge to cut through the fog and build the Great Wall of National Security.
