Miraculous Chibi (2018)

S1E22 Runaway Robot, Romeo

High above a peaceful city, a hill rich with metal ore has become the robots' next objective. Their gleaming forms move silently through the dawn, drawn by the promise of raw resources buried beneath the earth. The quiet streets below remain unaware of the mechanical invasion beginning on the ridge. Soon, the hill will hum with the sound of extraction, as the machines set to work claiming the metallic bounty for their own mysterious purposes.