In the parallel space, the technology of planet D-46 has already developed from four dimensions to five dimensions. The leader of the planet handed over this "'Creation of Five Dimensions' Plan" to the flight technician code-named Z-7213, and ordered him to find a five-dimensional time and space that can survive.
While Z-7213 was undergoing experiments, an accidental installation error brought him to Earth. He couldn't believe that he had come to a three-dimensional world, where four-dimensional technology had no effect. What was even more crazy was that a serious viral epidemic was breaking out on this planet. As a fourth-dimensional person, he saw that the people on earth were about to perish, and he had to go back quickly.
Z-7213 wanted to get help from the Paranormal Research and Defense Bureau (507th Institute) and met Song Weile. Song Weile gave him an earth name - Song Jing. After arriving at Institute 507, Song Jing and Dr. Ke Tan conducted experiments together to try to find a way to go back.
The severe epidemic situation left government leaders helpless, so they wanted to know from Song Jing the future solution to the virus, and Song Jing, who was controlled, had to deal with it. In the end, the leaders did not get a cure for the epidemic and began to send troops to kill all the patients. For a time, the streets were filled with killings.
The director of Institute 507 took advantage of the chaos and released Song Weile and Song Jing. On the way to escape, the two accidentally received a rescue transmission from the D-46 planet. Song Jing decided to take Song Weile back with him.
After discussion, the two walked into the space-time aperture together. Song Jing returned to the D-46 planet, but Song Weile was unable to enter the four-dimensional space-time and returned to the earth.
Song Jing continues his experimental plan. Perhaps, Song Jing finally finds the five-dimensional space and they meet again...
Concept: Is there really an unknown fourth dimension in the universe?