Chen, a new employee at the Xihun pharmaceutical laboratory, noticed something sinister: young lads were disappearing without trace, and there were many people dying of pneumonia. One day, without warning, his workplace ceased operation and all of the workers disappeared, untraceable. Suddenly word was out - coronavirus had struck, plummeting the world into a dark abyss. Those responsible had resorted to murder to try to silence would-be whistle-blowers. The lives of Chen and many others were now in danger, families were being punished, and an underground movement began operating around the clock to smuggle those at greatest risk out of China.