This is a time-travel novel set in the stalemate stage of the Anti-Japanese War. Lin Heng, a modern young man, unexpectedly traveled behind enemy lines in North China in 1940. With limited modern knowledge, a small portable space, and vague memories of historical trends, he gradually grew from a confused and fearful stranger into a persevering revolutionary warrior in the baptism of blood and fire, witnessing the weight of history and the insignificance and greatness of individuals.
