The eight-year class reunion has been reduced to a dead end. The time capsule detonated a disaster, and Lin Yun and others were trapped. The countdown was ticking, and strange changes followed one after another. As the observer of the "Boundary Monument", he uncovered the truth that the stabilizer had become a fuse, and everyone was forced to fight to the death with the "deep diver". Lin Yun died, and his companions escaped with key data, but the warning was still in their ears, and the silver-gray substance squirming around the pit indicated that the crisis was far from over.
