Zhao Tieshan, a veteran who was enjoying his "retired" life in the cooking class, was shocked and his cigarette butts were hot to his hands. He was personally invited out of the mountain by the major general, but he faced his former closest disciple. Recruit a "mixed army": chatty communications soldiers, calm snipers, and explosive demolition experts. Training conflicts broke out: the players were dissatisfied → Zhao Tieshan shocked him with his strength → trusted Chu Jian. Border reconnaissance: Zhao Tieshan accurately predicted the whereabouts of the "Ghost King" through cigarette butts and footprints. Psychological tactics: Zhao Tieshan used his understanding of his apprentice to counter his trap. His apprentice's provocation made him feel painful. The core secret is in danger of being stolen: the team is in danger, someone is injured, and Zhao Tieshan encounters the "Ghost King" head-on. Master-disciple duel: swords and swords, past friendship intertwined with today's hatred, Zhao Tieshan severely injured his apprentice, but found that he left a secret code that only master and apprentice could understand... "What on earth do you want to do?! Dusk... What is that?" Zhao Tieshan looked into the distance, smoke blurred his vision. He knew that this was not the end, but the beginning of a deeper entanglement. A huge secret about betrayal and the fate of redeeming the country was slowly being revealed.