With the support of Dai Li, Chen Mo reorganized the special operations team and launched a tight defense of the Huangshan official residence. However, "Xiao"'s killing moves followed one after another: the spies on the list began to act collectively, and explosions and assassinations occurred frequently in Chongqing. At the same time, a mysterious woman appeared in front of Chen Mo, claiming to know the true identity of "Xiao". Three days countdown, every second counts. And in the shadow of Huangshan's official residence, the real sniper rifle is already in place...