In the future 168 years of the new era, the development of human science and technology has reached a very high level, with the help of the anti-gravity system, the sky is full of giant buildings, the hovering car flying between the high-rise buildings is popular, there are air lanes for hovering cars in various cities, and everyone has a simple smart brain, which is called a visual interface. In such a high-tech world, human beings are still facing various crises and challenges, different aliens lurk on the earth for different purposes, some pursue profits, some try to destroy, human beings must try to protect themselves.