In the 22nd century, the "Silent Plague" swept across the world - all sounds would collapse into dark rifts that swallowed matter three seconds after they were produced. Linguist Su Zhou was forced to join the "Deep Time Expedition" because he could hear the "residual voiceprints" before the plague and went to the center of the earth to find the legendary "original tuning fork" that could reverse the laws of physics.
On their way deep into the mantle, the expedition team discovered that the earth was actually a "living prison" sealed by ancient civilizations, and the plague was actually a precursor to the restart of the prison's security system. When the team members were torn apart by voices from their past one after another, the moment Su Zhou touched the tuning fork at the bottom of the nuclear blast pit, he heard the first heartbeat before the birth of the universe - which was actually the countdown to the end of all civilizations.
