Tracking the distress signals, the aliens speed back to Earth, a planet they consider a temple of Life. And when they discover the paradisial planet is now polluted and beset with extinctions & ecological destruction, they issue an ultimatum. Humanity has one year and one chance to fix things.
But as the powerful alien leader grows warm to present-day humans and their ways, usurpers in her ranks feel no affection for this untrustworthy species and plot a grim judgement. What will be the fate of Life on Earth?