Kan Lijun, who was young and stubborn but had a passionate heart, was deeply influenced by his grandfather, a veteran. He cherished the dream of being a special forces soldier and resolutely joined the army after being hit by a broken love. From being a spearhead soldier in a new company, he experienced the test of life and death in Devil Zhou and the hail of bullets in border missions. Under Qin Xiaofei's harsh tempering and silent protection, his youth gradually faded away.
He formed a life-long friendship with Lei Yifeng, Zhan Dapeng, and Zhuang Zheng, and together they investigated ten years of unresolved cases, exposed the conspiracy between the "Black Mamba" organization and the insider, and upheld justice amidst betrayal and sacrifice. From a rebellious boy on the street to a king of the special forces, Kan Lijun interpreted his original intention of "defending the family and the country" with his sweat and blood. He grew up in the bonds of love and comradeship, and finally realized the transformation from a "mad dog" to a king of soldiers, protecting the peace of his family and country and the reunion of the world.
The novel takes military career as the main line, intertwined with the passion of youth, feelings of family and country, love and hatred, and the ups and downs of the plot, showing the soldier's iron-blooded responsibility and tenderness.