In 1930, under the historical background of the Japanese invasion of the three northeastern provinces of our country, Shan Zhongxiang took revenge on the Japanese invaders after his sister was brutally killed by the Japanese army. While defending the dignity of the Chinese nation with his life and wisdom, the protagonist in the play also completes the self-redemption and sublimation of his personality in the cruel environment of the struggle against the enemy, so as to praise the patriotic spirit and national spirit of thousands of "descendants of the dragon" who are indomitable and brave to resist the enemy. The play not only interprets the cruelty of war, but also shows the ups and downs brought by war to the fate of "grassroots" characters.