In the occupied ancient city, the gongs and drums of Fenghua Tower are played every day. The famous actress Su Yanqiu went on stage to pretend to be an old student and sang a heroic drama for the Japanese invaders. Everyone criticized her for bending to flatter the enemy. Little did they know that the stage was a base for secret warfare, and the graceful singing and stage movements were all secret signals. She and the latent wealthy businessman Lu Shiheng used the opera house as a shield to deal with the Japanese puppets and forward intelligence. A group of Liyuan children lost their sharp edge and went to the country on the stage of Fengyue. They sang the eternal loyalty on the stage and composed the tragedy of troubled times off the stage.
