When Helvetica Frog gets the hiccups she wonders 'What causes hiccups?' The friends are transported to a human body where they meet Bob O' Tummy who explains that hiccups are caused by the diaphragm muscle jumping. 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.