On New Year's Eve, Luobai Commercial Building is conducting a New Year's promotion. The owner of the commercial building, Luo Haoran, is celebrating with his shareholders that he has become the person of the year. However, Zhou Yi, the engineering manager, discovered many cracks in the building during his inspection. He did not wait for Zhou Yi to notify him to close the business for rectification.Danger suddenly came and the building shook violently, and everyone ran out of the building in panic.At this time, He Xiaoguang, who was paying homage to his younger brother outside the building, saw the building shaking. As a former firefighter, he rushed into the building to save people. An explosion occurred during the process, and Xiaoguang was trapped underground trying to save people.After the Public Security Bureau and Fire Rescue Center received the alarm, the fire brigade worked hard to put out the fire and search for survivors.At this moment, Xiaoguang, who was trapped underground, contacted Zhu Wei, the captain of the fire brigade, and informed him that a total of ten people including him were trapped underground: Luo Haoran's daughter Ding Zi, her best friend Haimei, the building engineering departmentLao Zhou, security guard Yang Bing, supermarket cashier Tao Ye, retired lawyer Chang Xiangning, customer Lin Yuyang and his son Lin Zhengtai, and Guo Haoyu, the second son of the Guo Group.In fact, there was another trapped person underground. While looking for asthma medicine, Tao Ye saw the supermarket manager Shi Kai who was hit by a stone. The real situation was that he had a conflict with Shi Kai before the accident, and Lin Yuyang accidentally beat Shi Kai.Injured... On the ground, an hour before the accident, the Public Security Bureau received an anonymous reporting call about Luo Bai's reconstruction, and the captain of the criminal police team, Ye Xiao, was ordered to investigate the cause of the accident.