"A Sword in the Sky" is a TV series released in mainland China on February 2, 2017. This drama has a total of 45 episodes. A single episode is 45 minutes long. The story told in this film took place in the late 1930s, when the Peking Opera Troupe was very famous at that time. "Sheng Jiaban" and Jiang Youcai< /span>Forged a grudge, and in the conflict, Sheng Zhonghao's father and mentor all died. Before his father died, Sheng Zhonghao made Sheng Zhonghao swear a poisonous oath that he could not take revenge. , on the way to Tianjin, several people finally got lost. In order to cover Sheng Zhonghao, they finally entered the labor camp of the Japanese army. The two people who love each other can only live apart in the end. Many years later, the three meet again. After that, Sheng Zhonghao serves as the battalion commander of the Independent Battalion of the Eighth Route Army, Wen Lixuan serves as the instructor, and the two brothers fight together again. In the end they annihilated the enemy.