Extreme weather linked to climate change affects countries regardless of wealth, and Europe is increasingly exposed. Zero Hour highlights how water has become one of the continent’s greatest vulnerabilities: destructive floods in parts of Germany, deepening droughts across Spain, rising tidal surges threatening Venice, and severe wildfires stretching from southern Europe to Siberia. Together, these events reveal a climate system that is becoming more erratic as global temperatures rise. Experts warn that such swings between excess and scarcity are no longer exceptions but signs of a long-term shift. As the climate continues to warm, Europe must rapidly rethink how it manages water, protects communities, and adapts infrastructure to withstand both extremes. The film underscores a simple truth: the window for effective adaptation is narrowing, and acting now is essential to prevent future catastrophe.