"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. The class puts Ms. Frizzle on trial for replacing Keesha's prized cucumber with a pickle. Ms. Frizzle tells the class the pickle is the work of the 'Mike Robe' (microbe) Gang. Ms. Frizzle shrinks the class down to the size of microbes so they can figure out exactly what happened to Keesha's cucumber.