Qin Laizi, a lame man selling barbecue in the subway station, was expelled as a beggar by the rich Shen Zhuo. That night, the ground fire awakened and the whole city lost power for three hours. Qin Laizi's lameness is an illusion. He was originally a military explosives expert. He was disabled due to betrayal and secretly controlled the city's underground energy network incognito. Shen Zhuo's rationality is a prison, and the younger brother of delivery rider Lin Xiaoman is being swallowed by the fire. Huo Dongyan, the director of urban planning, launched the earth core robbery plan, and the curse of the pulse keeper Lao Zhou was about to take effect, while the camera of the mysterious anchor Bai Wu was focused on Qin Laizi's chest - where the old heartbeat was beating. When the ancient earth line awakens, a battle about betrayal, protection and awakening quietly unfolds underground in the city.
