The day she disguised herself as an enemy spy, the entire army was waiting for her to betray her. Shen Zhao carries modern memory, but is forced to act as a traitor at gunpoint; Qi Lin looks on with cold eyes, but his murderous intention is shaken when she saves innocent soldiers again and again. Bai Yan's investigation, Su Lingyi's selfishness, He Xiao's mystery, Luo Jin's awakening - every pair of eyes is a knife, every doubt is fire. She is not a spy, but she understands the price of betrayal better than anyone else. When the battle lines collapsed, she chose to ignite her identity in exchange for an eternal lamp.