"The Magic School Bus" is an award-winning, animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. Arnold's dream comes true-- he doesn't have to go on a field trip. Ms. Frizzle lets him stay behind with Liz. However, it seems Arnold can't be completely left out because he accidentally swallows the bus. He then becomes the field trip as his classmates explore Arnold's digestive system.