In 2065, Lu Zheng, the tactical commander of the seventh federal army, was betrayed by friendly forces on the eve of victory, and died together with sniper Qin Luo. When he woke up, he was back in the military academy. He glanced at all the enemies and chess pieces in his previous life - the intelligence instructor Huo Zhun was a traitor, the logistics son Shen Tuo mastered the weak point of corruption, and the AI genius Ling Shuang regretted half his life because of a code loophole. Lu Zheng teamed up with the reborn Qin Luo to make plans in advance to regain the military exploits and uncover the traitor network. When the border warlord Bai Qishan brought his mecha army to the border, he ordered everyone to act according to his preset battlefield script - this time, life, death and glory were decided by him personally.