In 2157 AD, the earth's ecology completely collapsed, and the "Era of Aihong" came. Humanity huddles in the huge underground city "Iron Dome" and relies on a super artificial intelligence system called the "Heart of Gaia" to survive.
Chen Qiming, a young physicist who was ostracized by the academic community for studying the "irrational time paradox", accidentally received a distress signal from 150 years in the future during an abnormal energy fluctuation in the "Heart of Gaia". The signal sender was actually his future self. There is only one sentence in the message: "Go back 72 hours before the disaster and destroy the initial code 'Prometheus Fire' of the 'Heart of Gaia'."
On one side is the precarious reality of survival now, and on the other is the destruction instruction issued by the future self directed at the founder and patron saint of mankind. Chen Qiming had no choice. When he activated his homemade, untested time anchor device and jumped into the turbulent flow of time without hesitation, he did not know that he was embarking on not only a counterattack to save the world, but also a journey back to the abyss to uncover the truth about the destruction of civilization and face the choice between humanity and divinity.
