Retired general Huo Tieshan hid in the city and worked as a cleaner. He was ridiculed by the entire army as an outdated veteran. When the enemy's "Black Crow" troops used the AI matrix to crush the border defenses, and even the commander of the theater was helpless, the young staff officer Qin Xiao dug out his dusty combat notes in a desperate situation. An exercise that mistakenly entered the command center allowed Huo Tieshan to reverse the situation without anyone knowing. Overnight, the entire army knelt and begged to come back. But he didn't want to wear the military uniform again - until he discovered that this war was actually the result of his own actions twenty years ago.