Lei Tianya was a veteran of the reconnaissance battalion of the heavy-armed combined brigade. He accumulated rich combat experience during his service. After retiring from the army, his entrepreneurial failure caused him to lose all his savings, his family was broken up, and his wife left with their children.
In desperation, he joined the ranks of mercenaries and became famous for his ruthlessness and wisdom. After completing his last dangerous mission, he was suddenly attacked by a drone while on vacation. He mysteriously traveled back in time to the Anti-Japanese War and became the company commander of the 1st Company of the 443rd Regiment of the 72nd Division of the Shanxi-Sui Army during the Battle of Xinkou. The company commander's real name was also Lei Tianya. The story begins here.