He is the commander of the country's most powerful weapon, the "Dark Dragon". Three years ago, due to a well-designed conspiracy, he was forced to take off his military uniform and become an anonymous son-in-law of the Su family in Jiangcheng. His wife Su Wan is as cold as ice, his mother-in-law thinks he is a coward, and the whole family treats him like a piece of grass. He endured the humiliation just to find out the mastermind who framed him back then. Until that day, the top overseas killer organization "Black Mamba" sneaked into Jiangcheng, targeting the Su Group. When the blood of his former comrades-in-arms was spilled on the streets, and when the lives of his closest relatives hung on the line, he stood up slowly, the cold light in his eyes reappeared: "Notify all war zones in the country, Dark Dragon, return to your position."