Helvetica Frog is teaching Brewster and Maggie a new dance. She notices a rainbow and asks 'why aren't raindrops different colours?' They meet Drippy who shows them that when the sun shines through the raindrops they make the rainbow colours. Discover answers to questions only young children ask! Through creative thinking, Brewster and Maggie take young viewers on a journey of discovery in a way that will not only entertain, but will get their creative thinking caps on!   Based on the book series `Brewster the Rooster' by Clifford Parrott.