In 1937, Tong Jiaru, a native of Rehe, left his hometown to teach Chinese at Shanghai Niezhongcheng Middle School. His adopted daughter became disabled. He was forced to stay behind when he wanted to flee south again. Witnessing the aggressor cruelty to his compatriots, he swallowed his anger only to save his life. Student Ouyang is working for the country and is in dire need of assistants. Tong Jiaru bites the bullet to help. Ouyang sacrificed, and Tong Jiaru was exposed to being spotted by the Japanese spy Higashimura. He cleverly dealt with the task and got rid of suspicion. Ouyang boss Yang Xiao was arrested, and Tong Jiaru rescued him. Wife Gardenia just gave birth to her son Hope, but was killed for protecting Yang Xiao. In half a year, the four murderers who participated in the killing of Gardenia were all killed by Tong Jiaru without revealing their feet. Suffering from no evidence, Dongcun tried to use cruel tools of torture to force Tong Jiaru to confess guilt. The Communists organized a demonstration of teachers and students and rescued Tong Jiaru. Three years later, Tong Jiaru used himself as a bait to help comrades from the Kuomintang and the Communist Party to unite in addition to the Japanese spy base. The Japanese invaders surrendered, and Dongcun was unwilling to fail to kidnap Hope, and forced Tong Jiaru to fight with him. The comrades in arms overpowered East Village and rescued Hope. Dongcun scolded Tong as a coward, and Tong Jiaru told him: 'The Chinese have a brave heart when dealing with invaders.