Episode Title:The Magic School Bus in a Pickle.Episode Description:The kids have just come back from vacation and found that the vegetables that won some sort of contest have rotted. Keesha is particularly distressed, not because her first prize cucumber has rotted, but because it's gone and has been replaced with a pickle. Keesha reasons that the door to the classroom was locked over vacation and Ms. Frizzle had the key. To everyone's surprise Ms. Frizzle admitted that she had done something to Keesha's cucumber. The kids put Ms. Frizzle on trial and make Liz the judge. The Friz claims that Keesha’s cucumber was turned to a pickle by the "Mike Robe Gang" and takes the class on a field trip to prove it.