Lin Hansheng, an orphan from the northwest border, accidentally obtained the top-secret "Shadow Action Code" and was hunted by overseas agents. After being rescued by chance, he joined the "Ghost Wolf" special brigade. Starting from a recruit with the lowest physical fitness, he struggled in the rigorous training of "if you can't run five kilometers for less than 20 minutes, you will be eliminated". He used steel guns instead of gold fingers, and achieved nirvana in extreme physical fitness, special blind shooting training, and tactical deductions. From border counter-infiltration to overseas beheadings, from intelligence battles to cross-border lurking, he traveled the line of life and death under the codename "Gray Falcon", and finally uncovered the connection between the "Shadow Action Code" and the border murder ten years ago. When the national flag crowned him, he completed his counterattack from "a recruit who couldn't even hold a gun" to an "iron-blooded god of war".
