Synopsis：In the future, to deal with anomalous events, governments around the world jointly established the 超常规事件处置中心. One day, investigator 成英 and team members are ordered to trace the source of a mysterious broadcast signal. Passing through a cave, they arrive at a silent town, only to find all life there dead. The cave they came through suddenly vanishes, and even more terrifyingly, they discover another version of themselves…