Li Duanfeng was wrongly accused of treason and was shot down by his comrade Xie Jinhan during the escort. After lying dormant for five years, he returned to the border covered with gunpowder smoke and blood debt, tore up the military order, and asked in public: "Do you believe in military discipline, or my life?" Xie Jinhan's hand holding the gun remained motionless, but there was a fire in his eyes that no one dared to touch. The ambush back then was an order, a sacrifice, and a living sacrifice buried by his own hands. Now that Li Duanfeng has returned, he does not want to be innocent, but wants to use the blood of his enemies to cleanse himself - and Xie Jinhan, who once blocked three bullets for him, can never go back to the past.