Chen Yanzhi, a graduate student in the Department of History, accidentally traveled through time when he came across a map of the Anti-Japanese War in a museum, and woke up in the Hongkou District of Shanghai where the Battle of Songhu broke out on August 14, 1937. The smoke-filled alleys, collapsed houses, and desperate people turned the "tragedy" in the books into a biting reality, and also bound him to the "Mountain and River Guardian System" - an initial 10 cubic meters of space and novice supplies, which became his first reliance in troubled times.
In order to avoid Japanese bombing and patrols, Chen Yanzhi rescued the injured child Xiao Shitou and his mother Zhang Lan. With limited modern first aid knowledge and historical memory, he led the two to move to the guerrilla station in the northern part of Hongkou District. On the way, they encountered Japanese air raids and attacks on rainy nights. Chen Yanzhi relied on the temporary assistance of the system and the shooting skills taught by his grandfather to repel the Japanese troops with engineer shovels and picked-up rifles. However, he also deeply realized the dilemma of lack of weapons and disparity in combat power.
From a graduate student in a bustling city to a survivor in the flames of war, Chen Yanzhi, with the abilities given by the system and his understanding of history, gradually faded away from his youth on the road of escorting the people. Not only did he have to deal with the Japanese army's pursuit and interception, but he also had to hide the secrets of time travel and systems, and he also needed to keep his heart in the cruel war - he knew the ultimate victory of the war of resistance, but he also understood that every step of life and death in front of him had to be fought for with his own hands. For him, this time travel is a mission to protect the mountains and rivers, and it is also a tempering process of growing up in blood and fire.
