After the doomsday gray fog swallowed the world, military doctor Chen Jin became mute, but mercenary Qi Xiao frantically asked her to speak. She didn't speak, but she saved the entire camp with her eyes; he used gunshots to clear the way, just to regain her stolen voice. Radio anchor Lin Yuan hides sound waves that can awaken human memories, young boy A'Du secretly recorded her breathing when she was silent, and every pill given by pharmacist Mo Ran is poisonous. The radio that Lao Zhong had been repairing for a whole year finally emitted a cry belonging to her one night.
