Xiao Moyan, an introverted and taciturn programmer, actually has a superior IQ and is self-taught in network technology. In the real world, he often pretends to be a pig and eats the tiger, and his credit is always stolen by others. However, in the online world, he is a feared hacker brother who silently maintains national security. By chance, he was involved in a transnational cybercrime vortex. Faced with the pressing steps of hostile forces, Xiao Moyan had to show off his sharp blade and start a thrilling contest with the dark forces. In this war without gunpowder, he not only has to protect his identity from being exposed, but also uncovers the huge conspiracy behind it. However, just as he was about to reveal the truth, he was assassinated by hostile forces, and his life or death was uncertain. What will be his fate? Where will national security go from here?