This book is divided into two versions, except that one is set in Russian and the other is set in China. There is no difference in basic contents. The following is the introduction of the Russian version:

This is a huge and tragic story. In AD 2 1 year, NATO led by the United States launched an all-out attack on Russia. In the brutal defense war, the Russian electronic warfare equipment was unable to resist the US attack and was losing ground. The only way is to create an electronic flood, block all communication channels and make two electronic instruments fail at the same time. Then, a Russian astronaut crashed his spaceship into the sun, which triggered a huge magnetic storm and completely interrupted the communication on the earth. Humans returned to the era before Marconi, and soldiers reassembled bayonets.