"Heart of War" is set against the backdrop of the Battle of Songhu in 1937 to the victory of the Anti-Japanese War in 1945. Through the intertwined fates of young student Chen Zhiyuan, underground party member Lin Jing, and national army officer Zheng Shouguo, it shows the tenacity and sacrifice of the Chinese people at a time of national survival. The story extends from the fall of Shanghai to multi-dimensional anti-war scenes such as guerrilla warfare behind enemy lines, espionage undercurrents, and frontal battlefields. It depicts the characters' growth trajectory from confusion to awakening, and interprets the "loyalty" spirit of ordinary people in the great era.
