As the first domestic work with network security as the theme, the play uses Internet information security as an entry point, focusing on social hotspots and people‘s livelihood topics such as marriage, education, elderly care, and the office. The whole story tells the “Three Musketeers” Qin Huai and Zhou You and Chen Mo, who wander the Internet world. In the process of fighting against a certain Internet criminal group time and time again, people joined hands, from suspicion to each other.