From a practical point of view, this group is a virtual and ideal action group. It is an organization led by the national C DC institution to take action in the face of national public health emergencies. They have their own laboratories, cutting-edge experimental equipment, domestic first-class expert groups that can be consulted at any time, and first-class high-tech communication, information processing and transportation equipment; When an incident occurs, all resources have the right to mobilize.
The main story line of each episode is public health emergencies, and a small number of other types of events involving other public safety and public safety fields caused by such events.