In the 1940s, mathematicians Lan Bing and Zeng Jieru, who lived in Europe, tried to decipher the Japanese telegraph code and wanted to bring their only son, Blue Sky, back to China to save the country. However, the news was accidentally leaked to the Japanese army, and they began to encounter chasing shops. When they were about to arrive in Jiangcheng, they were arrested and killed by the Japanese ambush in advance. Of course, there is no happy ending here. They gave the password book to their son Lantian, but the encirclement laid by the Japanese army in Jiangcheng made Lantian a caged bird.
The aura of the protagonist played a role at this time, and Yin San, the captain of party member Jiangcheng Security Team of China Underground Production Party, undertook the task of protecting the blue sky in wartime. In this way, a battle of wits and courage with the Japanese army was launched, and a decisive battle of life and death was launched one after another. Finally, the blue sky got on the train safely under heavy blockade and blockade, but I was killed by myself.
Through a series of moments of life and death, the play shows a large wave of returned scientists at the dangerous moment of national life and death, the hardships they encountered all the way for the fate of the motherland, and the spirit of underground anti-Japanese workers who gave their lives for the survival of the motherland. The combination of technology and anti-idiosyncratic elements adds more color to the surge.