"Latent Shadow" tells the story of Chen Yan, a talented student from Peking University who joined the revolution after his best friend was murdered and lurked in the enemy's camp for 20 years. He transformed into the military celebrity "Chen Moqun", dealt with various forces, and fought side by side with his revolutionary partner "Nightingale". From a passionate scholar to an unknown hero, he faced the dawn in the center of darkness, and finally retired, witnessed the birth of New China, and returned to the ordinary platform. This is a hidden legend about faith, love and loyalty