In 1944, during the tragic battle of Guinan, Zhao Lie was in desperate situation due to the betrayal of his brother Zhou Mingyuan. When the whole company was destroyed, Zhao Lie wrote a final suicide note, weeping every word. The survivor Shen Che returned to the team with a suicide note, only to find that Zhou Mingyuan had been hailed as a combat hero. The suicide note was made public at the celebration banquet, and the words were like a knife, revealing the shady story of betrayal, betrayal and military exploits. Company commander Chen Guodong's silent files, logistics soldier Li Tie's account books, staff officer Han Zheng's recordings - everyone collapsed in front of the truth. Shen Che not only wants to avenge his brothers, but also wants to return the blood-stained military medal to its rightful place.