In the war-torn times, Shanghai is on the beach. The stern Major General Gu Mingcheng and Xiang Wan, a talented girl covered in pearls, caught a glimpse of each other at a glitzy feast. Smoke of gunfire suddenly rises, a helping hand in distress in the alley, a heart-pounding test on the shooting range, and a life-and-death agreement made in the flames of war. However, a mysterious fire caused her to "die in flames." When we meet again in Xi'an many years later, she has become someone else's wife, Lin Junxiao, and her identity is a mystery. Bloody spy shadows shroud the ancient city, old feelings and suspicions are torn apart, and the righteousness of family and country collide with deep-rooted love. Can they penetrate the fog and reunite their souls in the flames of war? This is a life-and-death decision between love and family and country in troubled times.