Synopsis：Meng Xiang, who relied on raising pigs to earn money for marrying a wife and supporting his mother, had all his pigs killed by Japanese bombers, destroying his dream. After failing to get help from local police, he went to the city to find his cousin Huang Er, who was also a policeman. Huang Er, unwilling to become a traitor, hid the precious medicine after witnessing the sacrifice of the Anti-Japanese Volunteer Army. When Meng Xiang arrived in the city, he learned that Huang Er had been imprisoned. With stubbornness and fearlessness, after a series of daring encounters, he successfully rescued Huang Er from prison. The two brothers then encountered the Volunteer Army. Using their wit and courage, they sneaked into the hospital under the noses of the Japanese, retrieved the medicine, raided the police station, captured the chief, and with the help of the Volunteer Army and former colleagues, finally killed the vicious Japanese squad leader and successfully handed over the medicine to the Volunteer Army.