The protagonist of the story, Zhu Xiaoqiang, is a Xiaoqiang who can't be killed. He used to be an excellent soldier, but after being injured and amnesia in the line of duty, he returned to the life of ordinary people. But he still worked hard, took care of his family responsibly, and faced himself bravely. He has done everything for the country and his family without complaint or regret, and the country and his relatives have also given him infinite care from material to spiritual. In the end, he found everything he had, and stood on the front line of the struggle against the enemy without hesitation. As a veteran in peacetime, the protagonist embodies the humanitarian spirit of aid full of self-sacrifice, presents the determination of our military and police personnel to protect the lives and safety of the people at all costs, and expresses the themes of the main theme, justice, and iron-blooded tenderness.