Lin Yuan ventures deep into the Earth's core world, Zone 0 Protection Area. Together with acoustic engineer Su Tang and mechanic Chen Ye, and carrying key information from a pocket watch left behind by his father, he embarks on an adventure all the way to rescue the strange beasts that the Alliance intends to implant with neural locks, breaking through layers of crisis. In the end, the team and the strange beasts jointly resist the Alliance's predatory occupation, restoring light to the Earth's core.