George's Marvellous Medicine

George is a young boy living with his parents and his unpleasant grandmother. When left alone with her, he decides to concoct a new medicine to improve her temperament. The potion causes his grandmother to undergo bizarre transformations, growing so tall she bursts through the ceiling. Encouraged by his father to recreate the potion for their farm animals, George tries but fails to replicate the formula, causing further chaos as the animals grow to gigantic sizes. Eventually, the effects wear off and the grandmother disappears, leaving the family happier and appreciating George's creative imagination.