Modern special forces soldier Zhou Rui encountered a thunderstorm while performing a mission. When he woke up, he found that he had traveled to the anti-Japanese battlefield in North China in 1939 and became a member of the Eighth Route Army guerrillas. As a result, he used modern military knowledge to quickly integrate into the team, showed extraordinary tactical literacy in the battle to ambush the Japanese transport team, and contributed his own strength to the victory of the Anti-Japanese War.