Introduction:
The young elite of the 21st century accidentally traveled through time and woke up to become the legendary hero of the 1940s - Yan Shuangying! However, before he could adapt to this war-torn world, he was hit by bad news: he only had the last twenty-four hours of his life.
In a desperate situation, a mysterious "national salvation system" is suddenly activated. The system gave him invincible strength and extreme speed beyond mortals, but it also put a shackles on his life: only by completing a series of high-risk tasks issued by the system can he gain valuable survival time. Kill traitors who betray their country and seek glory, sneak into a mountain prison like a dragon pool and a tiger's den to rescue comrades, become an undercover agent and work among enemy agents to steal top-secret intelligence... Every mission is a test of a near-death experience.
Amidst the hail of bullets and intrigues, the "new" Yan Shuangying, who possesses modern thinking and invincible skills, is forced to race against time. He wandered on the edge of life and death again and again, from just trying to survive to gradually realizing the righteousness and responsibility of his family and country. In a series of thrilling adventures, he not only accumulated life span, but also sharpened his will, growing into an unsung hero who truly fit this era, opening up a bright future in the dark night.