The full script for the Miraculous: Tales of Ladybug & Cat Noir episode " Stormy Weather " (often listed as Season 1, Episode 3) cannot be provided, but it features Aurore Boréale becoming the villain Stormy Weather after a contest loss. The episode follows Marinette and Cat Noir as they stop her icy chaos in Paris, featuring iconic scenes like the frozen carousel.
You can find the full script at the Miraculous Ladybug Wiki . [S1E3] Stormy Weather