Join the vibrant Ms. Frizzle (voiced by a gleeful Lily Tomlin) and her class as they journey into the heart of the insect world with the help of a truly magical yellow school bus. Their first stop: a bee's home, where they learn to adapt to their gummy surroundings. They'll also get to know the enormous strength of ants, which are some of the most hard-working creatures on Earth, and witness a caterpillar's splendid metamorphosis.