When a rainstorm prevents Nancy and her best friend, Robert, from getting to the planetarium the night of a class field trip, she has a brilliant idea for making things better.

On a field trip to an aquarium with Miss Frizzle and her science class, Arnold not only overcomes his fear of sea animals but also becomes the hero of the day.

The Magic School Bus takes Ms. Frizzle and her class on a trip to the Museum of Natural History. During the trip the class travels back to the Mesozoic Era and experiences a first hand Jurassic adventure!