Imagine this — a bright afternoon in Berlin. Tourists snap photos beneath the Brandenburg Gate, children laugh in Pariser Platz, and street musicians play violin under the perfect blue sky. It’s peaceful — until the sound shifts. A distant rumble, low and growing, like a jet but deeper. People turn toward the horizon, confused. Then someone screams. Within seconds, the impossible appears — a wall of dark-blue water racing toward the heart of the city. The filmer’s breath quickens; the camera tre