Modern special forces Zhao Yunfei encountered an accident while performing a mission to protect a quantum communication experiment, and traveled to the 1942 Taihang Mountains Anti-Japanese Battlefield with 21st century individual soldier equipment. After experiencing the true tempering of blood and fire, the soldier codenamed "Zi Long" gradually grew from a lone hero to the soul of the Red Army, rewriting the epic of the Anti-Japanese War with modern military thinking.