In the heart of the Amazon, three scientists uncover a chilling truth: humanity is deemed "unfit." Dr. Gabriel Harlow, Dr. Alina Moreau, and Dr. Omar Reyes' desperate warnings are met with global indifference, forcing them into hiding within the ancient Wonderwerk Cave.

When the world falls silent, they emerge to an Earth terrifyingly purged. Cities stand empty, humanity vanished without a trace?not destroyed, but erased. A faint radio signal leads them to five terrified children, the sole glimmer of human life in a world claimed by an unknown force.

Driven by a desperate longing for something more than mere survival, the small band of survivors returns to the surface, daring to reclaim a desolate town. But their fragile peace is shattered when colossal alien ships reappear, and a chilling, sentient entity?the Watcher?descends. Its silent, mind-invading message seals humanity's fate: "Behave. Or we will be back."

Now, in a world that is no longer theirs, every breath is a test. Their survival is not a victory, but a precarious existence under the constant, unseen gaze of an alien power. The creatures may be gone, but their watchers never stopped monitoring. And if they ever forget who truly owns this world, the executioners will return, leaving no one behind.