A young fly discovers, day by day, that there is a lot to learn about being an insect, including the dangers of flypaper and that heroes come in all shapes and sizes.

While riding in the car with Buzz and his father, Fly Guy gets blown out of the window and finds himself riding in a truck, then a boat, a train, an airplane, and maybe even a rocket.

After accidentally swallowing her grandson's pet fly, Grandma tries to retrieve it by consuming progressively larger animals.

When Fly Guy snacks from a radioactive trash can, he grows until he is fifty feet tall--and Buzz has to find out a way to counteract the effect before the army attacks his pet.

This expanded version of the traditional rhyme shows what happens when a young mouse tries to get rid of a pesky fly. Includes music on the last page.

When Fly Guy is not allowed in the restaurant with Buzz's family he follows his nose and ends up in the soup.

When Buzz and Liz visit the zoo, their pets Fly Guy and Fly Girl go looking for food, and find the Creatures of the Night exhibit, where they see animals that would like to eat them.