In July 1937, the situation in North China was critical, and the Japanese army was preparing to launch a full-scale war of aggression against China. Heishizhai in Chahar Province appeared to be calm, but in fact it was undercurrent. On the eve of the wedding of Zhang Songling, a well-known talent, and his lover, he was framed by a traitor and his family was broken up. Zhang Songling learned from his pain and resolutely joined the army. After several hard battles, his military literacy was rapidly improved, and he understood that the responsibility of a soldier was to protect the people. Later, Zhang Songling was seriously injured and came to the grassland. He joined the guerrillas under the leadership of the Communist Party, united the people of the grassland, shared the same hatred and fought against the Japanese invaders. Zhang Songling saw the sincerity and selflessness of the Communist Party and realized that the Communist Party was the hope of China. He gloriously joined the Communist Party of China and became the leader of the guerrillas and the backbone of the red anti-Japanese armed forces. Zhang Songling led the team, united the people, fought wits and courage with the invaders and traitors, did not fear hardships, made great sacrifices, and finally successfully drove the invaders out of the grassland.