Synopsis：Lin Sen and his teammates from Thunder Security Company infiltrate a town controlled by terrorists to rescue the female scientist Nancy. After a fierce battle, Nancy is rescued, and as they are about to evacuate according to the original plan, an alien child hanging in a cage at the bridge blocks their way. In a critical moment, Lin Sen and his teammates rush towards the innocent child, even if it means defying orders and risking their lives. Just as they manage to rescue the child, a large group of terrorists appear, and a sniper shot breaks the balance, causing the teammate who protected the child to fall to the ground. The sniper is the man known as "The Ghost."